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 A063183 #7 Jan 01 2023 20:28:07
%S A063183 1,1,2,4,6,11,11,20,26,37,39,59,66,97,107,120,151,203,230,303,345,381,
%T A063183 422,542,623,737,817,963,1074,1328,1480,1798,2097,2275,2518,2702,3071,
%U A063183 3630,3973,4295,4770,5614,6253,7294,8020,8676,9421,10913,12136,13577,14871
%N A063183 Number of nonisomorphic cyclic subgroups of the group S_n X S_n (where S_n is the symmetric group of degree n).
%e A063183 Set of orders of elements of S_8 X S_8 is {1,2,3,4,5,6,7,8,10,12,14,15,20,21,24, 28,30,35,40,42,56,60,70,84,105,120}, thus a(8) = 26.
%Y A063183 Cf. (labeled case) A063182.
%K A063183 nonn
%O A063183 0,3
%A A063183 _Vladeta Jovovic_, Jul 10 2001
%E A063183 More terms from _David Wasserman_, Jul 10 2002
%E A063183 a(0)=1 prepended by _Alois P. Heinz_, Jan 01 2023