id:A060897 - OEIS Search Results

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Number of walks of length n on square lattice, starting at origin, staying in first and third quadrants.

+0
6

1, 4, 12, 44, 144, 528, 1808, 6676, 23536, 87568, 315136, 1180680, 4314560, 16263896, 60138816, 227899484, 850600944, 3238194560, 12177384544, 46542879384, 176110444736, 675431779856, 2568878867200, 9882068082112 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Is there a formula analogous to the (conjectured) formula for A060900?`
	CROSSREFS	`Cf. A005566, A001700, A060898-A060900.` `Sequence in context: A149358 A149359 A167402 this_sequence A005190 A149360 A149361` `Adjacent sequences: A060894 A060895 A060896 this_sequence A060898 A060899 A060900`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net), May 05 2001`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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