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A074690 Permutation of natural numbers induced by the Catalan bijection gmA074690! acting on the parenthesizations encoded by A014486/A063171. 5
0, 1, 3, 2, 6, 7, 8, 5, 4, 14, 15, 16, 17, 18, 19, 20, 22, 11, 12, 21, 13, 10, 9, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 60, 61, 62, 28, 29, 63, 30, 31, 32, 56, 57, 64, 33, 34, 59, 36, 25, 26, 58, 35, 27, 24, 23, 107, 108, 109, 110, 111 (list; graph; refs; listen; history; text; internal format)
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 (gmA074690! s) (cond ((pair? s) (gmA074690! (car s)) (gmrobl! s))) s)

CROSSREFS

Inverse of A074689. a(n) = A057163(A074686(A057163(n))). Cf. A074681-A074688. Occurs in A073200.

Sequence in context: A123499 A082349 A082335 * A122332 A074685 A120706

Adjacent sequences:  A074687 A074688 A074689 * A074691 A074692 A074693

KEYWORD

nonn

AUTHOR

Antti Karttunen, Sep 11 2002

STATUS

approved

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Last modified October 23 17:32 EDT 2019. Contains 328373 sequences. (Running on oeis4.)