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 A305476 Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 6 or 8 king-move adjacent elements, with upper left element zero. 0
 1, 5, 10, 48, 277, 1558, 11438, 123104, 1894686, 36262397, 960587975, 37710956242, 1964623266399, 139733367823273 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A305482. LINKS EXAMPLE Some solutions for n=5 ..0..1..1..1..1. .0..1..1..1..1. .0..0..0..0..1. .0..0..0..0..0 ..1..1..1..1..1. .1..1..1..1..1. .0..0..0..0..0. .0..0..0..0..0 ..1..1..1..1..1. .1..1..1..1..1. .1..0..0..0..0. .0..0..0..1..0 ..1..1..1..1..1. .1..1..1..1..0. .1..1..0..0..0. .0..0..0..0..0 ..0..1..1..1..0. .1..1..1..0..0. .1..1..1..0..0. .1..0..0..0..0 CROSSREFS Cf. A305482. Sequence in context: A103932 A034190 A216390 * A270089 A336582 A271275 Adjacent sequences: A305473 A305474 A305475 * A305477 A305478 A305479 KEYWORD nonn AUTHOR R. H. Hardin, Jun 02 2018 STATUS approved

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Last modified March 20 14:25 EDT 2023. Contains 361384 sequences. (Running on oeis4.)