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Permutation of natural numbers: composition of permutations A057163 & A074684.
4

%I #5 Mar 31 2012 14:02:19

%S 0,1,2,3,4,5,7,8,6,9,10,12,13,11,17,18,21,22,20,16,19,14,15,23,24,26,

%T 27,25,31,32,35,36,34,30,33,28,29,45,46,49,50,48,58,59,63,64,62,57,61,

%U 54,55,44,47,56,60,53,42,51,37,38,43,52,40,41,39,65,66,68,69,67

%N Permutation of natural numbers: composition of permutations A057163 & A074684.

%H <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations induced by Catalan automorphisms</a>

%F a(n) = A057163(A074684(n)).

%Y Inverse of A082359. Occurs in A073200. Cf. also A082357-A082358.

%K nonn

%O 0,3

%A _Antti Karttunen_, Apr 17 2003