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 A030741 #7 Apr 08 2020 20:49:23 %S A030741 2,3,4,5,7,9,12,15,18,21,24,28,31,34,36,38,45,48,52,56,61,65,69,74,76, %T A030741 79,83,88,95,99,103,107,113,117,122,127,129,133,137,142,147,153,158, %U A030741 161,168,171,176,182,188,193,201,205,210,213,220,227,232,237,242 %N A030741 Record values in A030737. %K A030741 nonn %O A030741 1,1 %A A030741 _Clark Kimberling_ %E A030741 More terms and simpler title from _Sean A. Irvine_, Apr 08 2020