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 A195295 #20 Apr 18 2022 10:17:57 %S A195295 0,1,2,5,8,22,53,151,435,1314,4239,13705,45746,153850,525236,1817111, %T A195295 6341424,22336060,79287664,283277225,1018369893 %N A195295 Number of Goldbach partitions of 4^n. %C A195295 Bisection of A006307. %Y A195295 Cf. A061358, A065577, A180007. %K A195295 nonn,more %O A195295 0,3 %A A195295 _Kausthub Gudipati_, Sep 16 2011