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 A230681 Number of 7Xn 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value 2-x(i,j) 0
 0, 63291, 53519163, 42681522741, 47444197636239, 51564141085334199, 55314799986833459367, 59453762981075686349985, 63928300225239002685024369 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row 7 of A230675 LINKS EXAMPLE Some solutions for n=3 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 ..0..2..2....0..2..2....0..2..2....0..2..2....0..2..2....0..2..2....0..2..2 ..0..1..0....0..1..1....0..0..0....0..1..0....0..0..0....0..0..0....0..0..1 ..1..2..0....0..2..2....1..2..0....1..2..1....1..0..2....0..2..0....1..1..1 ..2..0..2....0..0..2....0..1..1....2..1..1....2..1..0....0..1..1....0..2..1 ..1..0..2....0..2..0....1..2..0....0..0..0....2..2..2....1..2..1....2..2..2 ..1..1..1....1..1..1....2..0..2....0..2..2....0..0..0....2..0..2....0..0..0 CROSSREFS Sequence in context: A234080 A232264 A209713 * A209793 A115748 A226003 Adjacent sequences:  A230678 A230679 A230680 * A230682 A230683 A230684 KEYWORD nonn AUTHOR R. H. Hardin, Oct 27 2013 STATUS approved

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Last modified July 4 04:35 EDT 2022. Contains 355063 sequences. (Running on oeis4.)