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 A232407 Number of (n+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor 0
 15, 2689, 2189991, 16776955943, 1137726954093673, 615510832230066725429, 2693465102291782418303130499 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A232414 LINKS EXAMPLE Some solutions for n=2 ..0..2..2....0..2..1....2..2..1....2..0..0....1..2..1....2..0..0....2..2..0 ..2..0..2....2..0..0....2..0..1....1..2..2....2..0..1....2..2..1....2..0..0 ..2..2..1....0..1..0....0..2..2....1..1..1....2..2..0....2..2..2....0..2..0 CROSSREFS Sequence in context: A126678 A340185 A208197 * A208404 A208411 A249965 Adjacent sequences: A232404 A232405 A232406 * A232408 A232409 A232410 KEYWORD nonn AUTHOR R. H. Hardin, Nov 23 2013 STATUS approved

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Last modified December 8 17:38 EST 2022. Contains 358698 sequences. (Running on oeis4.)