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 A243506 #15 Jun 15 2017 03:06:21 %S A243506 1,2,5,3,14,8,41,4,13,23,122,11,365,68,38,6,1094,18,3281,32,113,203, %T A243506 9842,17,63,608,25,95,29525,53,88574,7,338,1823,188,28,265721,5468, %U A243506 1013,50,797162,158,2391485,284,74,16403,7174454,20,313,88,3038,851,21523361,39,563,149,9113,49208,64570082,83,193710245,147623,221,9 %N A243506 Permutation of natural numbers: a(n) = A048673(A122111(n)). %H A243506 Antti Karttunen, <a href="/A243506/b243506.txt">Table of n, a(n) for n = 1..1024</a> %H A243506 Indranil Ghosh, <a href="/A243506/a243506.txt">Python program for computing the sequence</a> %H A243506 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A243506 a(n) = A048673(A122111(n)). %F A243506 a(n) = A243066(A241916(n)). %F A243506 For all n >= 1, a(A000040(n)) = A007051(n) and a(A000079(n)) = A006254(n). %o A243506 (Scheme) (define (A243506 n) (A048673 (A122111 n))) %Y A243506 Inverse: A243505. %Y A243506 Cf. A000040, A000079, A006254, A007051. %Y A243506 Related or similar permutations: A048673, A122111, A243065-A243066, A244981-A244982, A244983-A244984, A244153-A244154. %K A243506 nonn %O A243506 1,2 %A A243506 _Antti Karttunen_, Jun 25 2014