id:A069344 - OEIS Search Results

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

+0
20

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

	OFFSET	`1,2`
	CROSSREFS	`Cf. n X m A069325-A069342, n X n non-symmetric A069343.` `Adjacent sequences: A069341 A069342 A069343 this_sequence A069345 A069346 A069347` `Sequence in context: A135754 A118023 A054590 this_sequence A003011 A115705 A136171`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhh(AT)cadence.com), Mar 16 2002.`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.