This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A345986 #19 Jul 09 2025 04:56:16 %S A345986 2,4,6,8,10,14,26 %N A345986 Numbers k > 0 such that the k-th power of the Dedekind eta-function is lacunary. %H A345986 S. Krishnamoorthy and T. Dalal, <a href="https://arxiv.org/abs/2411.14990">On the vanishing of coefficients of eta^26</a>, arXiv:2411.14990 [math.NT], 2024. %H A345986 J.-P. Serre, <a href="https://doi.org/10.1017/S0017089500006194">Sur la lacunarité des puissances de eta</a>, Glasgow Math. Journal, 27 (1985), 203-221. %Y A345986 Cf. A007706. %K A345986 nonn,fini,full %O A345986 1,1 %A A345986 _Simon Plouffe_ and _N. J. A. Sloane_, Jul 10 2021, following a suggestion from Francis Sanchez