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 A340512 #21 Feb 03 2021 01:09:35 %S A340512 1,6,6,12,10,24,14,24,18,40,22,48,26,56,30,48,34,72,38,60,42,88,46,96, %T A340512 50,104,54,84,58,120,62,96,66,136,70,144,74,152,78,160,82,168,86,176, %U A340512 90,184,94,192,98,150,102,156,106,216,110,168,114,232,118,240,122,248,126,192,130 %N A340512 Order of a smallest group G with a conjugacy class of size n. %C A340512 By Lagrange's theorem, a(n) is always a multiple of n, and it is likely this multiple is always 2, 3, or 4 for n>1. %C A340512 Because of dihedral groups, a(2k+1) = 4k+2. %H A340512 Bob Heffernan, <a href="/A340512/b340512.txt">Table of n, a(n) for n = 1..191</a> %e A340512 a(4) = 12 because the smallest finite group with a conjugacy class of size 4 has order 12 (A_4). %Y A340512 Cf. A340513 for the number of groups of this order. %K A340512 nonn %O A340512 1,2 %A A340512 _Bob Heffernan_ and _Des MacHale_, Feb 02 2021