A074686 Permutation of natural numbers induced by the Catalan bijection gmA074686! acting on the parenthesizations encoded by A014486/A063171.

0, 1, 3, 2, 8, 7, 4, 5, 6, 22, 21, 17, 18, 20, 10, 9, 11, 12, 13, 14, 15, 16, 19, 64, 63, 58, 59, 62, 46, 45, 48, 49, 50, 54, 55, 57, 61, 27, 26, 23, 24, 25, 29, 28, 30, 31, 32, 33, 34, 35, 36, 38, 37, 39, 40, 41, 42, 43, 44, 47, 51, 52, 53, 56, 60, 196, 195, 189, 190, 194

Offset

0,3

Links

Table of n, a(n) for n=0..69.

A. Karttunen, Gatomorphisms (with the complete Scheme source)

Index entries for sequences that are permutations of the natural numbers

Prog

(Scheme function implementing this automorphism on list-structures:)
(define (gmA074686! s) (cond ((pair? s) (gmA074686! (cdr s)) (gmrobr! s))) s)

Crossrefs

Inverse of A074685. a(n) = A057163(A074690(A057163(n))). Occurs in A073200.

Sequence in context: A123500 A074689 A122331 * A120705 A122296 A122359

Adjacent sequences: A074683 A074684 A074685 * A074687 A074688 A074689

Keyword

nonn

Author

Antti Karttunen, Sep 11 2002

Status

approved