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 A258006 #6 Jun 05 2015 22:03:37 %S A258006 22,333,22,333,22,223,110,22,333,22,223,110,22,333,22,333,22,333,22, %T A258006 333,22,223,110,22,333,22,333,22,333,22,333,22,223,110,22,333,22,333, %U A258006 22,333,22,333,22,333,22,333,22,223,110,22,333,22,333,22,333,22,333,22,333,22,333,22,333,22,333,22,333,22,333,22,333,22,223,110 %N A258006 First differences of A258202. %H A258006 Antti Karttunen, <a href="/A258006/b258006.txt">Table of n, a(n) for n = 1..10000</a> %F A258006 a(n) = A258202(n+1) - A258202(n). %o A258006 (Scheme) (define (A258006 n) (- (A258202 (+ 1 n)) (A258202 n))) %Y A258006 Cf. A258202, A258200, A258007. %K A258006 nonn %O A258006 1,1 %A A258006 _Antti Karttunen_, Jun 05 2015