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A163002 Number of n X n binary arrays with all 1s connected and a path of 1s from upper left corner to lower right corner 0
1, 3, 45, 2423, 482443, 360923899, 1012326365581 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

CROSSREFS

Sequence in context: A012780 A072503 A154242 * A117253 A012833 A012747

Adjacent sequences:  A162999 A163000 A163001 * A163003 A163004 A163005

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 20 2009

STATUS

approved

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Last modified March 27 16:36 EDT 2017. Contains 284177 sequences.