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 A144763 #4 Jun 02 2025 00:36:28 %S A144763 1,6,10,3,2,6,30,1,42,6,15,78,21,10,30,6,42,5,210,15,30,3,330,390,105, %T A144763 510,546,570,70,195,210,110,42,130,35,330,30,66,105,210,21,2310,2730, %U A144763 14,210,3570,3990,4290,1155,4830 %N A144763 core(A144761(n)). %Y A144763 Cf. A007913, A144741 %K A144763 easy,nonn %O A144763 1,2 %A A144763 _Reikku Kulon_, Sep 20 2008