id:A072772 - OEIS Search Results

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Y-projection of the tabular N X N -> N bijection A072764 and X-projection of its transpose A072766.

+0
10

0, 1, 0, 2, 3, 1, 0, 0, 4, 5, 6, 7, 8, 2, 3, 1, 0, 0, 1, 0, 0, 0, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 4, 5, 6, 7, 8, 2, 3, 1, 0, 0, 1, 0, 0, 0, 2, 3, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44 (list; graph; listen)

	OFFSET	`1,4`
	COMMENT	`This corresponds to Lisp/Scheme function 'cdr' computed with respect to the lexicographical ordering of parenthesizations/planar binary trees (A014486), i.e. with planar binary trees this is equal to extracting the right subtree (from the root), with general parenthesizations equal to discarding the first sub-parenthesization of the top-level list and with general plane trees equal to discarding the leftmost branch from the root.`
	LINKS	`A. Karttunen, Gatomorphisms (with the complete Scheme source)`
	CROSSREFS	`Sequence in context: A070078 A054438 A010341 this_sequence A124314 A059087 A030373` `Adjacent sequences: A072769 A072770 A072771 this_sequence A072773 A072774 A072775`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen Jun 12 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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