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 A257736 #6 May 10 2015 11:00:11 %S A257736 1,2,3,4,5,6,7,8,11,10,23,12,15,14,31,16,9,22,27,20,47,46,191,24,13, %T A257736 30,63,28,29,62,159,32,19,18,59,44,55,54,351,40,95,94,511,92,383,382, %U A257736 311,48,21,26,255,60,127,126,703,56,17,58,83,124,319,318,879,64,39,38,175,36,119,118,1919,88,111,110,1279,108,125 %N A257736 Permutation of natural numbers: a(n) = A257690(A257726(n)). %H A257736 Antti Karttunen, <a href="/A257736/b257736.txt">Table of n, a(n) for n = 1..382</a> %H A257736 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A257736 a(n) = A257690(A257726(n)). %o A257736 (Scheme) (define (A257736 n) (A257690 (A257726 n))) %Y A257736 Inverse: A257735. %Y A257736 Cf. A257726, A257690, A257738. %K A257736 nonn %O A257736 1,2 %A A257736 _Antti Karttunen_, May 09 2015