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A069343 Number of n X n binary arrays with path of adjacent 1's from upper right corner to lower left corner. 19
1, 3, 51, 3828, 1225194, 1636193228, 9009490924794 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Cf. m X n A069325-A069342, n X n symmetric A069344.

Sequence in context: A210676 A105639 A003028 * A084882 A275798 A246050

Adjacent sequences:  A069340 A069341 A069342 * A069344 A069345 A069346

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 16 2002

STATUS

approved

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Last modified May 17 22:15 EDT 2021. Contains 343992 sequences. (Running on oeis4.)