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Related papers: Proofs of some Conjectures from the OEIS

200 papers

We collect here various conjectures on congruences made by the author in a series of papers, some of which involve binary quadratic forms and other advanced theories. Part A consists of 100 unsolved conjectures of the author while…

Number Theory · Mathematics 2015-03-13 Zhi-Wei Sun

The purpose of this note is to give an affirmative answer to a conjecture appearing in [Integral Transforms Spec. Funct. 26 (2015) 90-95].

Classical Analysis and ODEs · Mathematics 2019-10-03 K. Castillo , M. N. de Jesus , J. Petronilho

Some class of sums which naturally include the sums of powers of integers is considered. A number of conjectures concerning a representation of these sums is made.

Combinatorics · Mathematics 2017-03-02 Andrei K. Svinin

I conjecture a certain explicit determinant evaluation, whose proof would imply the solution of certain enumeration problem that I have been working on, and that I find interesting. I am pledging \$500 to the OEIS Foundation (in honor of…

Combinatorics · Mathematics 2014-01-09 Doron Zeilberger

In this short note we present a class of conjectures on partitions of integers as summations of primes, which are extensions of Goldbach conjecture.

General Mathematics · Mathematics 2007-07-17 Florentin Smarandache

This note gives an informal overview of the proof in our paper "Borel Conjecture and Dual Borel Conjecture", see arXiv:1105.0823.

Logic · Mathematics 2011-12-20 Martin Goldstern , Jakob Kellner , Saharon Shelah , Wolfgang Wohofsky

A short, fairly self-contained proof is given of the Poincar\'e Conjecture. In the previous version there was an error on Page 8. This gap has now been filled.

General Mathematics · Mathematics 2025-09-26 M. J. Dunwoody

Sequences whose terms are equal to the number of functions with specified properties are considered. Properties are based on the notion of derangements in a more general sense. Several sequences which generalize the standard notion of…

Combinatorics · Mathematics 2007-05-23 Milan Janjić

We classify all of the groups with twelve or fewer subgroups. This paper is the proof of the entries in a submission to the Online Encyclopedia of Integer Sequences.

Group Theory · Mathematics 2020-07-09 Michael C Slattery

We give positive answer to two conjectures posed by M. E. H Ismail in his monograph [Classical and quantum orthogonal polynomials in one variable, Cambridge University Press, 2005].

Classical Analysis and ODEs · Mathematics 2022-03-29 K. Castillo , D. Mbouna

This is a collection of 1031 formulas that were generated by a computer program in 1992. The set is the database of integer sequences as of 1992 which contained 4568 sequences. These sequences were later published in the Encyclopedia of…

Number Theory · Mathematics 2009-11-30 Simon Plouffe

This paper describes a method used to construct infinitely many probable counterexamples of the abc conjecture over the rational integers.

Number Theory · Mathematics 2007-05-23 N. A. Carella

For the OEIS sequence A002627, defined by the inhomogeneous first-order recurrence $a(n) = n\,a(n-1) + 1$ with $a(0) = 0$, R.~J.~Mathar recorded in February 2014 the conjectured second-order homogeneous recurrence \[ a(n) - (n+1)\,a(n-1) +…

Combinatorics · Mathematics 2026-05-18 Tong Niu

In this paper 101 new integer sequences, sub-sequences, and sequences of sequences, together with related unsolved problems and conjectures, are presented. Also, definitions, examples, solved or open questions, and references for each…

General Mathematics · Mathematics 2007-05-23 Florentin Smarandache

Several conjectural continued fractions found with the help of various algorithms are published in this paper.

Number Theory · Mathematics 2017-04-14 Thomas Baruchel

We study the problem of generating interesting integer sequences with a combinatorial interpretation. For this we introduce a two-step approach. In the first step, we generate first-order logic sentences which define some combinatorial…

Logic in Computer Science · Computer Science 2023-02-10 Martin Svatoš , Peter Jung , Jan Tóth , Yuyi Wang , Ondřej Kuželka

We compute the next few terms of the OEIS sequence A348456 and provide guessed equations for the generating functions of some sequences in its context.

Combinatorics · Mathematics 2022-12-01 Manuel Kauers , Christoph Koutschan , George Spahn

We prove a relationship between certain integer expressions involving operators similar to the binary exclusive or. This gives a proof and generalization of a result conjectured about sequence A178729 in Sloane's Online Encyclopedia of…

Number Theory · Mathematics 2025-06-12 H A Verrill

In this paper, we prove the conjecture that if there is an odd perfect number, then there are infinitely many of them.

Number Theory · Mathematics 2022-02-10 Jose Arnaldo Bebita Dris

We provide a proof of a variant of the Landau-Siegel Zeros conjecture.

Number Theory · Mathematics 2007-05-31 Yitang Zhang