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 A301485 Number of nXn 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0
 1, 7, 52, 599, 15124, 903707, 116648010, 34593556316, 23228787136780, 34303673074888666 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A301491. LINKS EXAMPLE Some solutions for n=5 ..0..1..1..0..1. .0..1..0..1..0. .0..0..1..0..0. .0..0..0..1..1 ..0..0..1..0..0. .0..0..1..1..1. .1..1..1..1..1. .1..1..0..0..0 ..1..1..0..0..1. .1..1..1..0..0. .0..1..1..1..0. .0..0..0..0..1 ..0..0..0..1..0. .1..1..0..1..1. .1..0..1..1..1. .1..0..0..0..0 ..0..1..0..1..0. .1..0..1..0..0. .1..1..0..1..0. .0..1..0..1..0 CROSSREFS Cf. A301491. Sequence in context: A179517 A300932 A300875 * A224501 A241487 A236688 Adjacent sequences:  A301482 A301483 A301484 * A301486 A301487 A301488 KEYWORD nonn AUTHOR R. H. Hardin, Mar 22 2018 STATUS approved

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Last modified March 22 04:32 EDT 2019. Contains 321406 sequences. (Running on oeis4.)