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 A104434 #7 Nov 18 2020 20:05:57 %S A104434 1,1,2,4,10,20,56,116,321,739,1881,4200,12776,28528,74020,179197, %T A104434 492839,1146192 %N A104434 Number of ways to split 1, 2, 3, ..., 8n into n arithmetic progressions each with 8 terms. %Y A104434 Cf. A104429-A104433, A104435-A104443. %K A104434 nonn,more %O A104434 0,3 %A A104434 _Jonas Wallgren_, Mar 17 2005 %E A104434 a(0), a(10)-a(17) from _Alois P. Heinz_, Nov 18 2020