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 A228691 #10 Nov 30 2022 07:50:59 %S A228691 1,1,8,3,16,8,4,3,32,24,32,11520,12,32,8,1,6144,32,128,256,9216 %N A228691 a(n) = A001676(4*n + 1). %Y A228691 Cf. A001676, A228689, A228690, A228692. %K A228691 nonn,more %O A228691 0,3 %A A228691 _N. J. A. Sloane_, Aug 30 2013 %E A228691 Term a(14) corrected, a(16)-a(20) added by _Andrey Zabolotskiy_, Nov 27 2022