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A272957
Number of nX7 0..1 arrays with exactly n+7-2 having value 1 and no three 1s forming an isosceles right triangle.
0
7, 100, 499, 1840, 8211, 26052, 131056, 648178, 4336294
OFFSET
1,1
COMMENTS
Column 7 of A272958.
EXAMPLE
Some solutions for n=5
..1..0..0..0..0..0..1. .1..1..0..0..0..0..1. .0..1..0..0..0..0..0
..0..0..0..0..0..0..0. .0..0..0..0..0..0..1. .0..1..0..0..0..1..1
..1..0..0..1..0..0..1. .1..0..0..0..0..1..0. .0..1..0..0..1..0..0
..1..0..0..0..1..0..1. .1..0..0..0..1..0..0. .0..1..0..0..0..0..1
..1..0..0..0..0..0..1. .0..1..0..0..0..0..1. .0..1..0..0..0..0..1
CROSSREFS
Cf. A272958.
Sequence in context: A041084 A115066 A340887 * A123616 A001594 A297151
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 11 2016
STATUS
approved