English

Various Sequences from Counting Subsets

Combinatorics 2021-06-07 v2

Abstract

We count the number of subsets of {1,2,,n}\{1,2,\cdots,n\} under different conditions and study the sequence obtained as we let nn increase.

Keywords

Cite

@article{arxiv.2005.10081,
  title  = {Various Sequences from Counting Subsets},
  author = {Hung Viet Chu},
  journal= {arXiv preprint arXiv:2005.10081},
  year   = {2021}
}

Comments

6 pages. Changes: 1) Include references to the sequences after Table 1; 2) Correct a miscalculation in Table 1 discovered by N. J. A. Sloane; 3) Add a remark at the end to mention the recurrence found by A. Heinz

R2 v1 2026-06-23T15:41:19.122Z