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 A343821 #13 May 01 2021 21:41:09 %S A343821 15,21,22,28,29,35,36,37,42,43,45,49,50,51,52,56,57,58,63,64,65,66,70, %T A343821 71,72,73,77,78,79,80,81,84,85,86,87,88,91,92,93,94,96,98,99,100,101, %U A343821 102,105,106,107,108,109,112,113,114,115,116,117,119,120,121,122 %N A343821 Numbers k such that the alternating group A_k is a Hurwitz group. %C A343821 This sequence contains every k > 167 [Conder]. %C A343821 This sequence is found in Section 2 of the Gordejuela and MartÃnez paper, which has a slight error: 86 occurs twice and 87 is missing. %H A343821 Eric M. Schmidt, <a href="/A343821/b343821.txt">Table of n, a(n) for n = 1..150</a> %H A343821 Marston D. E. Conder, <a href="https://doi.org/10.1112/jlms/s2-22.1.75">Generators for alternating and symmetric groups</a>, J. London Math. Soc. (2) 22 (1980), pp. 75-86. %H A343821 J. J. Etayo Gordejuela and E. MartÃnez, <a href="https://doi.org/10.1016/j.jalgebra.2004.07.039">Alternating groups, Hurwitz groups and H^*-groups</a>, Journal of Algebra, 283 (2005), pp. 327-349. %Y A343821 Complement of A343822. %Y A343821 Cf. A179982. %K A343821 nonn %O A343821 1,1 %A A343821 _Eric M. Schmidt_, Apr 30 2021