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 A373649 #16 Apr 23 2025 13:20:53 %S A373649 72,864,2064,2172,3972,7932,10332,12632,15120,16536,17472,19236,20316, %T A373649 20336,20664,23772,23880,24420,25092,28920,31476,33132,35136,36876, %U A373649 38172,41016,41772,42060,46020,51480,54084,54392,55596,56196,59700,64512,65820,66600,73272,75972,79020,84744,89784,94980,96672 %N A373649 Integers k such that there are i groups of order k+i up to isomorphism, for i=1,2,3. %H A373649 Robin Jones, <a href="/A373649/b373649.txt">Table of n, a(n) for n = 1..500</a> %e A373649 72 is in this sequence as there is 1 group of order 73 up to isomorphism, 2 of order 74, 3 of order 75. %Y A373649 Cf. A373648 (i=1,2), A373650 (i=1,2,3,4), A381335 (i=1,2,3,4,5). %Y A373649 Equals A296024 - 1. %K A373649 nonn %O A373649 1,1 %A A373649 _Robin Jones_, Jun 12 2024