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A074682 Permutation of natural numbers induced by the Catalan bijection gmA074682! acting on the parenthesizations encoded by A014486/A063171. 6
0, 1, 3, 2, 8, 7, 4, 6, 5, 22, 21, 17, 20, 18, 10, 9, 14, 19, 16, 11, 12, 15, 13, 64, 63, 58, 62, 59, 46, 45, 54, 61, 57, 48, 49, 55, 50, 27, 26, 23, 25, 24, 38, 37, 51, 60, 56, 42, 44, 53, 47, 29, 28, 30, 32, 31, 39, 40, 52, 43, 33, 34, 35, 41, 36, 196, 195, 189, 194, 190 (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 (gmA074682! s) (cond ((pair? s) (gmA074682! (car s)) (gmA074682! (cdr s)) (gmrobr! s))) s)

CROSSREFS

Inverse of A074681. a(n) = A057163(A074683(A057163(n))). Occurs in A073200.

Sequence in context: A082336 A122333 A130356 * A131167 A127290 A131005

Adjacent sequences:  A074679 A074680 A074681 * A074683 A074684 A074685

KEYWORD

nonn

AUTHOR

Antti Karttunen, Sep 11 2002

STATUS

approved

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Last modified January 23 02:40 EST 2019. Contains 319365 sequences. (Running on oeis4.)