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A163035
Number of nX9 binary arrays with all 1s connected and a path of 1s from top row to bottom row
3
45, 9689, 3730303, 1180202569, 340759985173, 95151328370775
OFFSET
1,1
FORMULA
For a formula see the Goodman-Strauss links. - N. J. A. Sloane, May 22 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 20 2009
STATUS
approved