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 A258605 Number of (n+2)X(1+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum 1
 7500, 76729, 682356, 6056521, 46060932, 354117124, 2476716772, 17477633209, 115323919920, 766785689569, 4857669976665, 30962324784400, 190429804895616, 1176883728336121, 7081348901202170, 42770630476678225, 253149492547824624 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 1 of A258612 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=2 ..2..2..1....0..0..1....2..2..2....2..1..0....2..0..1....0..1..0....2..1..0 ..2..0..1....2..1..1....2..0..1....0..0..1....2..2..1....0..0..1....1..1..1 ..1..1..0....1..2..2....2..1..2....1..0..2....1..0..1....0..0..2....1..1..2 ..2..1..1....1..2..0....0..1..1....0..2..1....0..0..1....0..0..1....1..2..2 CROSSREFS Cf. A258612 Sequence in context: A253338 A252960 A258612 * A258604 A093225 A090742 Adjacent sequences: A258602 A258603 A258604 * A258606 A258607 A258608 KEYWORD nonn AUTHOR R. H. Hardin, Jun 05 2015 STATUS approved

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Last modified March 22 13:50 EDT 2023. Contains 361430 sequences. (Running on oeis4.)