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A069331 Number of 9 X n binary arrays with path of adjacent 1's from upper right corner to lower left corner. 17
1, 1681, 1332456, 804230945, 424660442975, 207204257344200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..6.

CROSSREFS

Cf. 2 X n A048739, 3 X n A069325, 4 X n A069326, 5 X n A069327, 6 X n A069328, 7 X n A069329, 8 X n A069330, 10 X n A069332, 11 X n A069333, 12 X n A069334, 13 X n A069335, 14 X n A069336, 15 X n A069337, 16 X n A069338, 17 X n A069339, 18 X n A069340, 19 X n A069341, 20 X n A069342, n X n A069343, n X n symmetric A069344.

Sequence in context: A322745 A189654 A163009 * A156175 A031760 A204568

Adjacent sequences:  A069328 A069329 A069330 * A069332 A069333 A069334

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 16 2002.

STATUS

approved

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Last modified June 2 18:17 EDT 2020. Contains 334787 sequences. (Running on oeis4.)