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 A316421 Number of n X n 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 0
 1, 5, 14, 97, 1097, 8916, 130402, 3242010, 86620644, 3376983746, 210700614386 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A316427. LINKS Table of n, a(n) for n=1..11. EXAMPLE Some solutions for n=5 ..0..0..0..0..0. .0..1..1..1..1. .0..1..0..1..1. .0..0..0..0..0 ..0..1..0..0..1. .1..1..1..1..1. .1..1..0..0..1. .1..0..0..0..0 ..0..0..0..0..0. .1..1..1..1..0. .0..0..0..0..0. .0..0..0..0..0 ..0..0..0..0..0. .0..1..1..1..1. .1..0..0..0..0. .1..1..0..0..0 ..1..0..0..0..0. .0..0..1..1..1. .0..0..0..1..0. .1..0..0..0..0 CROSSREFS Cf. A316427. Sequence in context: A334547 A348777 A024167 * A317424 A077262 A184439 Adjacent sequences: A316418 A316419 A316420 * A316422 A316423 A316424 KEYWORD nonn AUTHOR R. H. Hardin, Jul 02 2018 STATUS approved

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Last modified October 3 07:13 EDT 2023. Contains 365842 sequences. (Running on oeis4.)