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 A251242 Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements 1
 75, 14265, 20904689, 236035946835, 20534495636679387, 13764744150100667222985, 71093648993125363900542904561, 2829255370682961509218005180234886323 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A251249 LINKS R. H. Hardin, Table of n, a(n) for n = 1..11 EXAMPLE Some solutions for n=2 ..2..0..0....0..2..1....2..0..2....1..2..0....2..0..1....2..2..0....1..1..0 ..1..2..0....0..0..1....1..1..2....1..2..0....2..1..2....1..2..1....2..2..1 ..2..1..0....0..0..2....0..0..0....1..1..1....1..1..0....1..1..2....1..0..2 CROSSREFS Sequence in context: A294983 A361282 A093275 * A259464 A116527 A263064 Adjacent sequences: A251239 A251240 A251241 * A251243 A251244 A251245 KEYWORD nonn AUTHOR R. H. Hardin, Dec 01 2014 STATUS approved

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Last modified August 14 10:24 EDT 2024. Contains 375159 sequences. (Running on oeis4.)