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 A235494 #9 Feb 12 2018 17:42:20 %S A235494 0,1,2,4,3,7,9,5,6,18,14,17,12,23,10,28,8,11,36,13,21,20,34,61,27,49, %T A235494 46,81,15,43,63,59,16,68,22,35,54,37,26,92,42,83,45,29,51,126,122,107, %U A235494 32,25,98,44,69,19,162,119,30,52,86,31,84,151,118,90,24 %N A235494 Permutation of natural numbers: a(n) = A235489(A235201(n)). %C A235494 The permutation satisfies A000040(a(n)) = a(A000040(n)) for all positive n except for n=2. %C A235494 In contrast to A235485/A235486 this permutation contains also infinite cycles. %H A235494 Antti Karttunen, <a href="/A235494/b235494.txt">Table of n, a(n) for n = 0..10080</a> %H A235494 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A235494 a(n) = A235489(A235201(n)). %o A235494 (Scheme) (define (A235494 n) (A235489 (A235201 n))) %Y A235494 Inverse: A235493. Cf. also A235201, A235489, A235485/A235486, A234743/A234744. %K A235494 nonn %O A235494 0,3 %A A235494 _Antti Karttunen_, Jan 11 2014 %E A235494 Name and incorrect claim about multiplicativity corrected by _Antti Karttunen_, Feb 12 2018