id:A074683 - OEIS Search Results

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Permutation of natural numbers induced by the gatomorphism gmA074683! acting on the parenthesizations encoded by A014486/A063171.

+0
19

0, 1, 3, 2, 7, 6, 8, 5, 4, 17, 16, 18, 15, 14, 20, 19, 22, 12, 11, 21, 13, 10, 9, 45, 44, 46, 43, 42, 48, 47, 50, 40, 39, 49, 41, 38, 37, 54, 53, 55, 52, 51, 61, 60, 63, 31, 30, 62, 32, 29, 28, 57, 56, 64, 34, 33, 59, 36, 26, 25, 58, 35, 27, 24, 23, 129, 128, 130, 127, 126 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`A. Karttunen, Gatomorphisms (with the complete Scheme source)` `Index entries for sequences that are permutations of the natural numbers`
	PROGRAM	`(Scheme function implementing this automorphism on list-structures:)` `(define (gmA074683! s) (cond ((pair? s) (gmA074683! (car s)) (gmA074683! (cdr s)) (gmrobl! s))) s)`
	CROSSREFS	`Inverse of A074684. a(n) = A057163(A074682(A057163(n))). Occurs in A073200 as row 5572434.` `Sequence in context: A130395 A131171 A057504 this_sequence A131004 A082357 A130357` `Adjacent sequences: A074680 A074681 A074682 this_sequence A074684 A074685 A074686`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen Sep 11 2002`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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