A129610 - OEIS

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A129610

Signature-permutation of a Catalan automorphism, row 65352 of A089840.

0, 1, 3, 2, 7, 8, 5, 4, 6, 17, 18, 20, 21, 22, 11, 12, 13, 9, 10, 15, 14, 16, 19, 45, 46, 48, 49, 50, 54, 55, 57, 58, 59, 61, 62, 63, 64, 28, 29, 30, 31, 32, 33, 34, 35, 23, 24, 36, 25, 26, 27, 39, 40, 41, 37, 38, 43, 42, 44, 47, 52, 51, 53, 56, 60, 129, 130, 132, 133, 134

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

COMMENTS

Automorphism *A074680 = SPINE(*A129610). See the definition given in A122203.

LINKS

A. Karttunen, Table of n, a(n) for n = 0..2055

A. Karttunen, Prolog-program which illustrates the construction of this and similar nonrecursive Catalan automorphisms.

Index entries for signature-permutations of Catalan automorphisms

PROG

(Constructive and destructive Scheme implementation of this automorphism. These act on S-expressions, i.e. list-structures:)

(define (*A129610 s) (cond ((pair? s) (let ((t (*A074680 s))) (cons (car t) (*A074679 (cdr t))))) (else s)))