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 A257738 #6 May 10 2015 11:00:55 %S A257738 1,2,3,4,5,6,7,8,9,10,11,12,25,14,33,16,17,18,35,20,13,45,23,24,115, %T A257738 26,47,28,19,59,15,32,163,34,146,36,51,61,39,27,78,22,723,44,203,46, %U A257738 182,48,43,66,67,81,53,38,101,30,856,58,251,60,226,62,63,57,86,88,1093,104,273,70,52,128,6093,41,223,1010,77 %N A257738 Permutation of natural numbers: a(n) = A257726(A257690(n)). %H A257738 Antti Karttunen, <a href="/A257738/b257738.txt">Table of n, a(n) for n = 1..240</a> %H A257738 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A257738 a(n) = A257726(A257690(n)). %o A257738 (Scheme) (define (A257738 n) (A257726 (A257690 n))) %Y A257738 Inverse: A257737. %Y A257738 Cf. A257690, A257726, A257736. %K A257738 nonn %O A257738 1,2 %A A257738 _Antti Karttunen_, May 09 2015