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 A244219 #9 Jun 25 2014 13:11:08 %S A244219 0,1,2,3,4,6,7,8,9,11,12,13,14,15,16,17,18,20,21,22,23,25,26,27,28,29, %T A244219 30,31,32,34,35,36,37,39,40,41,42,43,44,45,46,48,49,50,51,53,54,55,56, %U A244219 57,58,59,60,62,63,64,65,67,68,69,70,71,72,73,74,76,77,78,79,81 %N A244219 The starting points of runs of consecutive terms with the same parity in A014418 (n represented in Greedy Catalan Base). %C A244219 The starting points of runs in A244220 and A244221. %C A244219 Thus, after zero, the positions where A014418(n-1) <> A014418(n) modulo 2. (Same is true for A244161). %C A244219 One more than the partial sums of A244226. %H A244219 Antti Karttunen, <a href="/A244219/b244219.txt">Table of n, a(n) for n = 0..4121</a> %F A244219 a(0) = 0, a(n) = 1 + A244218(n-1). %o A244219 (Scheme) (define (A244219 n) (if (zero? n) 0 (+ 1 (A244218 (- n 1))))) %Y A244219 Cf. A014418, A244218, A244161, A244220, A244221, A244226. %K A244219 nonn %O A244219 0,3 %A A244219 _Antti Karttunen_, Jun 23 2014