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 A245444 #7 Jul 22 2014 16:00:57 %S A245444 0,1,2,3,6,7,5,4,11,10,8,9,14,15,13,12,29,28,30,31,24,25,27,26,18,19, %T A245444 17,16,23,22,20,21,38,39,37,36,35,34,32,33,41,40,42,43,44,45,47,46,55, %U A245444 54,52,53,50,51,49,48,56,57,59,58,61,60,62,63,106,107,105,104,111,110,108,109,101,100 %N A245444 Permutation of nonnegative integers: a(n) = A193231(A165199(n)). %H A245444 Antti Karttunen, <a href="/A245444/b245444.txt">Table of n, a(n) for n = 0..1023</a> %H A245444 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a> %H A245444 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A245444 a(n) = A193231(A165199(n)). %o A245444 (Scheme) (define (A245444 n) (A193231 (A165199 n))) %Y A245444 Inverse: A245443. %Y A245444 Cf. A165199, A193231, A245445, A245446. %K A245444 nonn %O A245444 0,3 %A A245444 _Antti Karttunen_, Jul 22 2014