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 A373648 #26 May 01 2025 17:45:51 %S A373648 2,4,12,32,36,60,72,84,132,140,144,156,176,192,212,216,276,312,344, %T A373648 392,396,420,444,456,480,500,536,540,552,560,564,612,660,672,696,704, %U A373648 716,732,744,756,792,816,864,876,884,912,932,956,972,996,1040,1092,1140,1152,1172,1200 %N A373648 Integers k such that there are i groups of order k+i up to isomorphism, for i=1,2. %C A373648 All the terms are even. - _Robin Jones_, Apr 18 2025 %H A373648 Robin Jones, <a href="/A373648/b373648.txt">Table of n, a(n) for n = 1..500</a> %e A373648 2 is a term since there is 1 group of order 3 up to isomorphism, 2 of order 4. %Y A373648 Equals A296023 - 1. %Y A373648 Cf. A373649 (i=1,2,3), A373650 (i=1,2,3,4), A381335 (i=1,2,3,4,5). %Y A373648 Subsequence of A003277 - 1. %K A373648 nonn %O A373648 1,1 %A A373648 _Robin Jones_, Jun 12 2024