id:A072788 - OEIS Search Results

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Inverse permutation to A072787.

+0
4

0, 1, 3, 2, 8, 5, 4, 22, 7, 13, 10, 17, 18, 6, 9, 36, 21, 64, 19, 15, 12, 27, 46, 50, 16, 14, 41, 24, 31, 59, 58, 47, 60, 38, 37, 32, 11, 45, 20, 191, 44, 52, 120, 40, 23, 78, 63, 148, 144, 56, 43, 51, 111, 108, 35, 106, 61, 196, 168, 131, 178, 153, 150, 115, 116, 33, 29 (list; table; graph; listen)

	OFFSET	`0,3`
	LINKS	`A. Karttunen, Gatomorphisms` `Index entries for sequences that are permutations of the natural numbers`
	PROGRAM	`(Scheme functions below show the essential idea. For a complete source, follow the "Gatomorphisms" link.)` `(define A072788 (arithrank->lexrank-bijection A072740 A072741))` `(define (arithrank->lexrank-bijection pr1 pr2) (lambda (n) (CatalanRankGlobal (parenthesization->binexp (unrank-bintree n pr1 pr2)))))` `(define (unrank-bintree rank pr1 pr2) (cond ((zero? rank) (list)) (else (cons (unrank-bintree (pr1 (-1+ rank)) pr1 pr2) (unrank-bintree (pr2 (-1+ rank)) pr1 pr2)))))`
	CROSSREFS	`Inverse permutation: A072787. Cf. also A072740, A072741, A072789.` `Adjacent sequences: A072785 A072786 A072787 this_sequence A072789 A072790 A072791` `Sequence in context: A127541 A053219 A083087 this_sequence A085178 A126313 A125979`
	KEYWORD	`nonn,tabl`
	AUTHOR	`Antti Karttunen Jun 12 2002`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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