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 A030316 #8 Apr 13 2021 22:57:05 %S A030316 3,3,7,3,8,7,19,3,24,8,21,23,7,19,51,14,3,24,58,8,27,21,54,66,23,7,20, %T A030316 56,19,51,131,45,14,10,3,37,24,58,140,8,76,27,62,21,71,54,135,173,66, %U A030316 23,57,7,61,20,53,149,56,143,19,137,51,131,323 %N A030316 Least k such that the base-2 representation of n begins at s(k), where s=A030315. %Y A030316 Cf. A030315. %K A030316 nonn %O A030316 1,1 %A A030316 _Clark Kimberling_