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 A316642 Number of nXn 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. 0
 0, 3, 15, 42, 3988, 43604, 1396674, 331807728, 22368384180, 4961341851222 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A316648. LINKS EXAMPLE Some solutions for n=5 ..0..1..0..0..1. .0..1..1..0..0. .0..0..0..0..0. .0..0..1..1..1 ..0..0..0..1..0. .0..0..0..0..1. .1..0..0..1..0. .1..1..1..0..1 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .1..1..1..1..1 ..1..0..0..0..1. .0..1..0..0..1. .1..0..0..0..1. .0..1..0..1..1 ..0..1..0..0..1. .0..0..0..1..0. .0..0..1..0..0. .1..0..0..0..0 CROSSREFS Cf. A316648. Sequence in context: A219085 A093627 A192060 * A146805 A147057 A101165 Adjacent sequences:  A316639 A316640 A316641 * A316643 A316644 A316645 KEYWORD nonn AUTHOR R. H. Hardin, Jul 09 2018 STATUS approved

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Last modified April 19 10:45 EDT 2019. Contains 322255 sequences. (Running on oeis4.)