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 A306167 Number of nXn 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 0
 1, 5, 13, 93, 832, 5277, 53834, 722779, 11592019, 300465411, 11442115258 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A306172. LINKS EXAMPLE Some solutions for n=5 ..0..0..0..0..1. .0..1..0..0..1. .0..0..0..0..0. .0..1..0..0..1 ..0..0..0..1..1. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 ..0..0..1..1..1. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 ..0..0..0..0..1. .1..0..0..0..0. .0..0..0..0..0. .0..0..0..1..0 ..0..0..0..1..1. .0..0..0..1..0. .1..0..0..1..0. .0..1..0..1..1 CROSSREFS Cf. A306172. Sequence in context: A055623 A280294 A304663 * A107171 A309532 A123646 Adjacent sequences:  A306164 A306165 A306166 * A306168 A306169 A306170 KEYWORD nonn AUTHOR R. H. Hardin, Jun 23 2018 STATUS approved

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Last modified November 30 06:28 EST 2021. Contains 349419 sequences. (Running on oeis4.)