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 A263275 #5 Nov 09 2015 16:14:42 %S A263275 1,2,1,3,3,4,1,5,4,2,2,3,1,4,3,4,4,5,1,6,4,6,1,7,5,2,2,8,2,9,1,10,3, %T A263275 10,1,11,9,12,2,12,4,13,1,14,3,13,1,14,3,2,4,15,2,16,1,16,4,17,1,18,4, %U A263275 19,1,18,18,20,2,21,2,21,1,22,5,23,2,22,2,24,1,25,2,3,2,4,6,4,3,5,3,6,1,6,4,7,1,7 %N A263275 One-based row-index to array A263255. %H A263275 Antti Karttunen, <a href="/A263275/b263275.txt">Table of n, a(n) for n = 0..10002</a> %F A263275 If A262693(n) = 1, then a(n) = 1, otherwise a(n) = 1 + a(A049820(n)). %F A263275 a(n) = 1 + A263254(n). %o A263275 (Scheme, two alternative definitions) %o A263275 (definec (A263275 n) (if (= 1 (A262693 n)) 1 (+ 1 (A263275 (A049820 n))))) %o A263275 (define (A263275 n) (+ 1 (A263254 n))) %Y A263275 One more than A263254. %Y A263275 Cf. A049820, A262693, A263255. %Y A263275 Cf. also A263274. %K A263275 nonn %O A263275 0,2 %A A263275 _Antti Karttunen_, Nov 07 2015