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 A098885 #19 Mar 21 2024 14:25:12 %S A098885 1,1,1,2,1,1,5,2,1,1,14,1,1,1,2,5,1,1,51,1,1,1,1,2,1,1,1,267,1,1,1,1, %T A098885 15,1,1,1,1,1,1,1,1,2,5,1,2328,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1, %U A098885 1,1,1,1,67,1,56092,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,5,1,1,1,1,2,1,1,1,1,1,1,1,1 %N A098885 Number of nonisomorphic p^m-groups (i.e., groups of prime power orders). %H A098885 Klaus Brockhaus, <a href="/A098885/b098885.txt">Table of n, a(n) for n = 1..340</a> [a(199) corrected by Andrey Zabolotskiy] %H A098885 H. U. Besche, B. Eick and E. A. O'Brien, <a href="http://www.icm.tu-bs.de/ag_algebra/software/small/number.html">Number of isomorphism types of finite groups of given order</a> [dead link] %F A098885 a(n) = A000001(A000961(n)). %o A098885 (Magma) D := SmallGroupDatabase(); [ NumberOfSmallGroups(D, n) : n in [1..410] | n eq 1 or IsPrimePower(n) ]; /* _Klaus Brockhaus_, Mar 15 2007 */ %Y A098885 Cf. A000001, A000961, A098886, A128604. %K A098885 nonn %O A098885 1,4 %A A098885 _Lekraj Beedassy_, Oct 14 2004 %E A098885 More terms from _Klaus Brockhaus_, Mar 15 2007