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 A300938 Number of n X n 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0
 1, 3, 5, 38, 248, 3873, 99717, 5562548, 556497081, 107105438462 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A300944. LINKS Table of n, a(n) for n=1..10. EXAMPLE Some solutions for n=5 ..0..1..0..1..1. .0..1..1..1..1. .0..1..1..0..0. .0..1..1..0..1 ..0..0..1..1..1. .1..1..1..0..0. .0..0..0..0..0. .1..1..1..0..1 ..0..0..1..1..0. .1..1..0..0..0. .0..1..0..0..0. .1..1..1..1..1 ..0..0..0..0..1. .1..0..0..0..0. .0..1..1..1..0. .0..0..0..0..1 ..1..0..0..0..0. .1..0..0..0..1. .1..0..1..1..1. .1..0..0..0..0 CROSSREFS Cf. A300944. Sequence in context: A337858 A337859 A184314 * A183258 A077779 A176112 Adjacent sequences: A300935 A300936 A300937 * A300939 A300940 A300941 KEYWORD nonn AUTHOR R. H. Hardin, Mar 16 2018 STATUS approved

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Last modified February 23 01:12 EST 2024. Contains 370265 sequences. (Running on oeis4.)