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 A303078 Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 0
 1, 2, 32, 90, 11767, 409478, 266882021, 218955384065, 942790501392266 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A303084. LINKS EXAMPLE Some solutions for n=5 ..0..1..1..1..1. .0..0..1..1..1. .0..0..1..0..0. .0..0..1..0..0 ..0..1..1..1..0. .0..0..0..1..1. .1..0..0..0..0. .1..0..0..0..1 ..0..1..0..1..1. .0..0..1..1..0. .1..0..0..0..1. .1..0..0..0..1 ..1..1..1..1..0. .0..0..1..1..1. .1..0..1..0..1. .0..0..1..0..1 ..0..1..1..1..1. .1..0..0..1..1. .0..0..0..0..0. .0..0..0..0..0 CROSSREFS Cf. A303084. Sequence in context: A139732 A037313 A122127 * A226395 A257965 A191997 Adjacent sequences: A303075 A303076 A303077 * A303079 A303080 A303081 KEYWORD nonn AUTHOR R. H. Hardin, Apr 18 2018 STATUS approved

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Last modified March 26 09:11 EDT 2023. Contains 361529 sequences. (Running on oeis4.)