id:A125982 - OEIS Search Results

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Signature-permutation of the inverse of Deutsch's 2000 bijection on ordered trees.

+0
4

0, 1, 3, 2, 8, 6, 7, 4, 5, 22, 19, 20, 14, 15, 21, 16, 17, 9, 10, 18, 11, 13, 12, 64, 60, 61, 51, 52, 62, 53, 54, 37, 38, 55, 39, 41, 40, 63, 56, 57, 42, 43, 58, 44, 45, 23, 24, 46, 25, 27, 26, 59, 47, 48, 28, 29, 50, 33, 36, 34, 49, 30, 35, 31, 32, 196, 191, 192, 177, 178 (list; graph; listen)

	OFFSET	`0,3`
	REFERENCES	`Emeric Deutsch, A Bijection on Ordered Trees and Its Consequences, J. Combin. Theory, A 90 (2000), no. 1, 210-215.`
	LINKS	`A. Karttunen, Table of n, a(n) for n = 0..2055` `Index entries for signature-permutations of Catalan automorphisms`
	PROGRAM	`(MIT Scheme implementation of this automorphism that acts on S-expressions, i.e. list-structures:) (define (A125982 s) (cond ((null? s) s) (else (map A125982 (cons (except-last-pair s) (car (last-pair s)))))))`
	CROSSREFS	`Inverse: A125981. A125984 gives the A057163-conjugate.` `Adjacent sequences: A125979 A125980 A125981 this_sequence A125983 A125984 A125985` `Sequence in context: A130960 A130927 A057162 this_sequence A125983 A130364 A130995`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), Jan 02 2007`

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

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