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 A228690 #10 Nov 30 2022 07:50:25 %S A228690 1,2,1,2,24,2,2,8,6,192,8,32,24,1,4,128,24,384,80,256 %N A228690 a(n) = A001676(4*n). %Y A228690 Cf. A001676, A228689, A228691, A228692. %K A228690 nonn,more %O A228690 1,2 %A A228690 _N. J. A. Sloane_, Aug 30 2013 %E A228690 Term a(14) corrected, a(16)-a(20) added by _Andrey Zabolotskiy_, Nov 27 2022