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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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A272958. LINKS 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: A041087 A041084 A115066 * A123616 A001594 A297151 Adjacent sequences:  A272954 A272955 A272956 * A272958 A272959 A272960 KEYWORD nonn AUTHOR R. H. Hardin, May 11 2016 STATUS approved

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