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 A298495 Number of nXn 0..1 arrays with every element equal to 0, 1, 3, 4 or 7 king-move adjacent elements, with upper left element zero. 0
 1, 4, 1, 38, 281, 277, 24272, 1377101, 10659243, 4599990391 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A298501. LINKS EXAMPLE Some solutions for n=6 ..0..0..0..0..0..0. .0..0..0..1..0..1. .0..1..0..0..0..0. .0..1..0..1..0..0 ..1..1..0..0..1..1. .0..0..1..0..0..0. .1..0..0..1..0..0. .0..1..0..1..0..0 ..1..1..1..1..1..1. .1..1..1..1..1..0. .1..1..1..1..1..1. .1..1..1..1..1..1 ..0..0..0..0..0..0. .0..0..0..0..0..0. .1..0..0..0..0..0. .1..0..0..0..0..0 ..1..1..0..0..1..1. .1..1..0..1..0..1. .1..1..1..0..1..1. .1..1..1..0..1..1 ..1..1..1..1..1..1. .1..1..1..1..1..0. .0..1..0..1..1..1. .0..1..0..1..1..1 CROSSREFS Cf. A298501. Sequence in context: A169656 A303987 A297900 * A193962 A302441 A269906 Adjacent sequences:  A298492 A298493 A298494 * A298496 A298497 A298498 KEYWORD nonn AUTHOR R. H. Hardin, Jan 20 2018 STATUS approved

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Last modified December 9 03:27 EST 2019. Contains 329872 sequences. (Running on oeis4.)