We prove that there is no strongly regular graph (SRG) with parameters (460,153,32,60). The proof is based on a recent lower bound on the number of 4-cliques in a SRG and some applications of Euclidean representation of SRGs.
Cite
@article{arxiv.1509.06286,
title = {There is no strongly regular graph with parameters (460,153,32,60)},
author = {A. V. Bondarenko and A. Mellit and A. Prymak and D. Radchenko and M. Viazovska},
journal= {arXiv preprint arXiv:1509.06286},
year = {2017}
}