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 A276958 #8 Sep 24 2016 10:50:33 %S A276958 1,3,4,2,5,7,9,10,11,13,15,6,16,17,18,8,19,12,20,21,22,14,23,25,27,28, %T A276958 29,31,33,34,35,37,39,40,41,42,43,44,45,46,47,49,51,52,53,55,57,24,58, %U A276958 59,61,26,63,64,65,66,67,68,69,30,70,71,73,32,75,36,76,77,79,38,81,48,82,83,85,50,87,88,89,90,91,92,93,54 %N A276958 Permutation of natural numbers: a(A255411(n)) = A153880(n), a(A256450(n)) = A273670(n). %H A276958 Antti Karttunen, <a href="/A276958/b276958.txt">Table of n, a(n) for n = 1..10080</a> %H A276958 <a href="/index/Fa#facbase">Index entries for sequences related to factorial base representation</a> %H A276958 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A276958 If A257680(n) = 0, then a(n) = A153880(A257684(n)), otherwise a(n) = A273670(A273662(n)). %o A276958 (Scheme) (define (A276958 n) (cond ((zero? n) n) ((zero? (A257680 n)) (A153880 (A257684 n))) (else (A273670 (A273662 n))))) %Y A276958 Inverse: A276957. %Y A276958 Cf. A153880, A257680, A257684, A273670, A273662. %Y A276958 For more recursed variants see: A275846, A275848 & A273668. %K A276958 nonn,base %O A276958 1,2 %A A276958 _Antti Karttunen_, Sep 22 2016