id:A129609 - OEIS Search Results

Search: id:A129609

Displaying 1-1 of 1 results found.

page 1

Signature-permutation of a Catalan automorphism, row 65167 of A089840.

+0
2

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

	OFFSET	`0,3`
	COMMENT	`Automorphism A074679 = ENIPS(A129609). See the definition given in A122204.`
	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`
	PROGRAM	`(Constructive and destructive Scheme implementation of this automorphism. These act on S-expressions, i.e. list-structures:)` `(define (A129609 s) (cond ((pair? s) (A074679 (cons (car s) (A074680 (cdr s))))) (else s)))` `(define (A129609! s) (cond ((pair? s) (A074680! (cdr s)) (A074679! s))) s)`
	CROSSREFS	`Inverse: A129610.` `Adjacent sequences: A129606 A129607 A129608 this_sequence A129610 A129611 A129612` `Sequence in context: A130930 A072095 A131009 this_sequence A130924 A073269 A122329`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), May 22 2007`

page 1

Search completed in 0.002 seconds

Last modified October 16 00:31 EDT 2008. Contains 145098 sequences.

AT&T Labs Research