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A129610 Signature-permutation of a Catalan automorphism, row 65352 of A089840. 3
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)))

(define (*A129610! s) (cond ((pair? s) (*A074680! s) (*A074679! (cdr s)))) s)

CROSSREFS

Inverse: A129609.

Sequence in context: A131002 A130394 A130955 * A130923 A057501 A071655

Adjacent sequences:  A129607 A129608 A129609 * A129611 A129612 A129613

KEYWORD

nonn

AUTHOR

Antti Karttunen, May 22 2007

STATUS

approved

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Last modified November 17 13:32 EST 2019. Contains 329230 sequences. (Running on oeis4.)