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 A037263 #9 Jul 08 2025 22:06:28 %S A037263 7,8,10,12,13,14,15,16,18,20,21,22,23,24,25,27,28,30,31,32,33,34,35, %T A037263 37,38,39,40,42,43,44,45,46,47,48,49,50,51,52,53,55,56,57,58,59,60,61, %U A037263 63,64,66,67,69,70,71,72,73,74,75,76,77,78,79,80,81,82,84,85,86,87,88,89 %N A037263 Third differences of A037260. %Y A037263 Cf. A037261, A037262. %K A037263 nonn,easy %O A037263 0,1 %A A037263 _N. J. A. Sloane_ %E A037263 More terms from Larry Reeves (larryr(AT)acm.org), Sep 25 2000