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 A298713 Number of nXn 0..1 arrays with every element equal to 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero. 0
 0, 1, 4, 59, 3508, 563977, 193439202, 177476979652, 405759343397572 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Diagonal of A298719. LINKS EXAMPLE Some solutions for n=5 ..0..0..0..0..0. .0..0..1..0..0. .0..0..0..0..0. .0..0..0..0..0 ..0..1..1..1..0. .0..1..1..1..0. .0..1..0..1..0. .0..1..1..1..0 ..1..1..1..0..0. .0..1..1..1..0. .0..1..1..1..0. .1..0..1..1..1 ..0..1..1..1..0. .0..1..0..1..0. .0..1..1..1..0. .0..1..1..1..0 ..0..0..0..0..0. .0..0..0..0..0. .0..0..1..0..0. .0..0..0..0..0 CROSSREFS Cf. A298719. Sequence in context: A194534 A026586 A298064 * A058173 A074835 A060492 Adjacent sequences:  A298710 A298711 A298712 * A298714 A298715 A298716 KEYWORD nonn AUTHOR R. H. Hardin, Jan 25 2018 STATUS approved

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Last modified December 15 22:53 EST 2018. Contains 318157 sequences. (Running on oeis4.)