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A131173 Signature permutation of a self-inverse Catalan automorphism: row 7 of A122285 and A122286. 5

%I

%S 0,1,2,3,4,5,6,8,7,9,10,11,12,13,14,15,19,21,22,16,20,17,18,23,24,25,

%T 27,26,28,29,30,31,32,33,34,35,36,37,38,39,40,41,51,52,56,58,59,60,62,

%U 63,64,42,43,53,57,61,44,54,45,46,47,55,48,49,50,65,66,67,68,69,70,71

%N Signature permutation of a self-inverse Catalan automorphism: row 7 of A122285 and A122286.

%C Derived from automorphism *A122282 with recursion scheme SPINE or ENIPS.

%H A. Karttunen, <a href="/A131173/b131173.txt">Table of n, a(n) for n = 0..2055</a>

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

%o (Destructive Scheme implementation of this automorphism, which acts on S-expressions, i.e. list-structures:)

%o (define (*A131173! s) (cond ((pair? s) (*A069770! (car s)) (if (pair? (cdr s)) (*A131173! (cddr s))))) s)

%K nonn

%O 0,3

%A _Antti Karttunen_, Jun 20 2007

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Last modified August 14 01:48 EDT 2020. Contains 336474 sequences. (Running on oeis4.)