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Permutation A057501 applied four times ("^4"), permutation A082315 squared.
4

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

%S 0,1,2,3,4,8,5,7,6,9,14,21,18,13,10,15,20,17,12,19,16,11,22,23,28,37,

%T 42,51,58,62,49,46,55,35,32,27,41,24,29,38,43,52,57,61,48,45,54,34,31,

%U 26,40,56,60,47,44,53,33,30,25,39,64,63,59,50,36,65,70,79,84,93

%N Permutation A057501 applied four times ("^4"), permutation A082315 squared.

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

%F a(n) = A082315(A082315(n))

%Y Inverse of A082320. Occurs in A073200. Cf. also A082321-A082324.

%K nonn

%O 0,3

%A _Antti Karttunen_, Apr 17 2003