A069344 - OEIS

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A069344

Number of n X n symmetric binary arrays with path of adjacent 1's from upper right corner to lower left corner.

1, 3, 19, 246, 6486, 346550, 37410572, 8142026722, 3567024626500, 3142034178023610 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	CROSSREFS	`Cf. n X m A069325-A069342, n X n non-symmetric A069343.` `Sequence in context: A135754 A118023 A054590 * A173799 A003011 A143597` `Adjacent sequences: A069341 A069342 A069343 * A069345 A069346 A069347`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Mar 16 2002.`

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Last modified February 14 10:18 EST 2012. Contains 205614 sequences.