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 A316572 Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero. 0
 1, 4, 11, 246, 3180, 129257, 8469438, 730909482, 185758559665, 50251974557654 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A316576. LINKS EXAMPLE Some solutions for n=5 ..0..1..0..0..1. .0..1..0..1..0. .0..0..1..0..1. .0..0..1..1..0 ..1..1..1..1..0. .1..0..1..1..0. .1..1..1..1..0. .1..1..0..0..1 ..0..1..1..1..1. .0..0..0..1..1. .0..1..1..1..1. .1..1..0..0..0 ..0..1..1..1..0. .1..1..0..0..1. .0..1..1..1..0. .1..1..0..0..1 ..0..1..0..0..1. .0..0..0..1..0. .1..0..1..0..1. .0..0..1..1..0 CROSSREFS Cf. A316576. Sequence in context: A118197 A092658 A304888 * A216571 A299046 A113314 Adjacent sequences:  A316569 A316570 A316571 * A316573 A316574 A316575 KEYWORD nonn AUTHOR R. H. Hardin, Jul 07 2018 STATUS approved

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Last modified October 19 11:26 EDT 2019. Contains 328216 sequences. (Running on oeis4.)