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 A275841 #6 Aug 13 2016 11:09:20 %S A275841 0,2,12,3,16,1,72,14,11,13,90,8,70,6,7,17,84,9,58,76,77,15,78,5,480, %T A275841 53,36,94,95,10,47,54,74,75,576,19,474,45,52,88,89,4,33,71,92,93,552, %U A275841 483,358,449,26,28,21,82,29,83,62,73,501,60,431,86,43,87,528,579,206,417,493,496,485,57,203,497,492,55,38,91,494,597,48,50,294,80,288,24,25,81 %N A275841 Permutation of nonnegative integers: a(n) = A273663(A275837(A273670(n))). %H A275841 Antti Karttunen, <a href="/A275841/b275841.txt">Table of n, a(n) for n = 0..5039</a> %H A275841 <a href="/index/Fa#facbase">Index entries for sequences related to factorial base representation</a> %H A275841 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A275841 a(n) = A273663(A275837(A273670(n))). %o A275841 (Scheme) (define (A275841 n) (A273663 (A275837 (A273670 n)))) %Y A275841 Inverse: A275842. %Y A275841 Cf. A273663, A273670, A275837. %K A275841 nonn,base %O A275841 0,2 %A A275841 _Antti Karttunen_, Aug 13 2016