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 A303409 Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
 8, 98, 730, 6322, 160247, 1716995, 24386918, 497878411, 6748940959, 106242067376, 1858501096856, 28169515094303, 452053058478307, 7483434704337764, 118104298097496073, 1903568189475537422, 30951192368001440803 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A303410. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=5 ..0..1..0..0..1..1..1. .0..0..1..1..0..1..0. .0..0..0..1..1..0..1 ..0..0..1..1..0..0..0. .1..1..0..0..0..0..1. .1..1..1..0..0..1..0 ..1..1..0..1..0..1..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0 ..0..0..0..1..1..0..1. .1..0..0..0..1..1..0. .1..0..1..1..0..0..1 ..1..1..0..0..1..1..1. .0..1..0..1..1..0..0. .0..1..0..0..1..1..0 CROSSREFS Cf. A303410. Sequence in context: A196327 A116130 A302527 * A264168 A116287 A290242 Adjacent sequences: A303406 A303407 A303408 * A303410 A303411 A303412 KEYWORD nonn AUTHOR R. H. Hardin, Apr 23 2018 STATUS approved

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Last modified September 19 18:07 EDT 2024. Contains 376014 sequences. (Running on oeis4.)