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 A265412 #7 Dec 13 2015 07:55:48 %S A265412 1,8,11,14,15,18,19,22,23,24,27,28,29,32,33,34,35,38,39,40,41,44,45, %T A265412 46,47,48,51,52,53,54,55,58,59,60,61,62,63,66,67,68,69,70,71,74,75,76, %U A265412 77,78,79,80,83,84,85,86,87,88,89,92,93,94,95,96,97,98,99,102,103,104,105,106,107,108,109,112,113,114,115,116,117,118,119,120,123 %N A265412 Partial sums of A265411. %H A265412 Antti Karttunen, <a href="/A265412/b265412.txt">Table of n, a(n) for n = 0..10001</a> %F A265412 a(0) = 1; for n >= 1, a(n) = A265411(n) + a(n-1). %F A265412 Other identities. For all n >= 0: %F A265412 A265410(a(n)) = n. [Particularly: a(n) gives the position where n occurs for the last time in A265410.] %o A265412 (Scheme) (definec (A265412 n) (if (zero? n) 1 (+ (A265411 n) (A265412 (- n 1))))) %Y A265412 Cf. A265410, A265411 (first differences), A265413. %K A265412 nonn %O A265412 0,2 %A A265412 _Antti Karttunen_, Dec 09 2015