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 A253521 Number of (n+1)X(5+1) 0..2 arrays with every 2X2 subblock diagonal minimum minus antidiagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal maximum nondecreasing vertically 1
 42669, 169828, 256914, 370028, 673229, 1439791, 3429207, 8936967, 24799705, 71469938, 210239277, 624906937, 1866784570, 5589710182, 16755089278, 50247017691, 150717649463, 452123299882, 1356332753987, 4068952191477 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A253524 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 9*a(n-1) -33*a(n-2) +65*a(n-3) -75*a(n-4) +51*a(n-5) -19*a(n-6) +3*a(n-7) for n>15 EXAMPLE Some solutions for n=2 ..2..2..0..1..1..1....1..1..0..0..1..2....1..2..0..2..2..0....2..2..0..0..2..2 ..2..1..0..0..0..0....1..0..0..0..0..0....2..2..0..1..1..0....2..2..0..0..1..1 ..0..0..0..2..2..2....1..0..2..2..2..1....0..0..0..0..1..2....2..1..0..0..0..1 CROSSREFS Sequence in context: A210264 A251245 A187959 * A254419 A254426 A147635 Adjacent sequences: A253518 A253519 A253520 * A253522 A253523 A253524 KEYWORD nonn AUTHOR R. H. Hardin, Jan 03 2015 STATUS approved

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Last modified September 13 00:40 EDT 2024. Contains 375857 sequences. (Running on oeis4.)