id:A069396 - OEIS Search Results

Search: id:A069396

Displaying 1-1 of 1 results found.

page 1

Half the number of 3 X n binary arrays with a path of adjacent 1's and a path of adjacent 0's from top row to bottom row.

+0
92

1, 25, 377, 4541, 48329, 476389, 4461489, 40306317, 354713977, 3060942133, 26020259201, 218626028573, 1820140085705, 15043088032837, 123602247055953, 1010793162739629, 8234370308667673, 66870924588036181 (list; graph; listen)

	OFFSET	`2,2`
	FORMULA	`G.f.: x^2(2x+1)^2/(1-8x)/(2x^2-7x+1)/(4x^2-6*x+1). - Vladeta Jovovic (vladeta(AT)Eunet.yu), Jul 02 2003`
	CROSSREFS	`Cf. 1 X n A000225, 2 X n A016269, vertical path of 1 A069361-A069395, vertical paths of 0+1 A069396-A069416, vertical path of 1 not 0 A069417-A069428, no vertical paths A069429-A069447, no horizontal or vertical paths A069448-A069452.` `Adjacent sequences: A069393 A069394 A069395 this_sequence A069397 A069398 A069399` `Sequence in context: A022749 A036071 A094190 this_sequence A125482 A028130 A028116`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhh(AT)cadence.com), Mar 22 2002.`

page 1

Search completed in 0.002 seconds

Last modified October 11 09:12 EDT 2008. Contains 144832 sequences.

AT&T Labs Research