A253877 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

21426176, 1689797632, 111370158592, 8407169495552, 580087707480832, 40954149283756544, 2875255935248467200, 201829672443656315648, 14124070170784841294080, 989446756729598826020096

Offset

1,1

Comments

Row 7 of A253871

Links

R. H. Hardin, Table of n, a(n) for n = 1..38

Example

Some solutions for n=1
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..1..0..0....0..0..0....1..0..0....1..0..0....0..0..0....1..0..0....1..0..0
..0..0..0....0..0..1....1..0..0....1..0..1....0..0..1....0..0..0....0..0..0
..1..0..1....1..1..1....1..0..1....0..1..1....0..0..1....1..1..0....0..0..1
..0..0..1....0..0..1....1..0..1....0..0..1....1..0..1....1..0..1....0..0..1
..0..0..0....1..1..0....1..1..0....1..0..1....1..1..1....1..0..0....1..0..1
..1..0..1....0..0..0....0..0..0....1..0..1....0..0..0....0..0..0....1..0..1
..1..0..1....1..0..1....0..1..1....0..0..0....0..1..1....1..1..0....1..0..1
..1..1..1....0..0..1....1..0..1....1..0..0....0..1..1....0..0..0....1..1..0

Crossrefs

Sequence in context: A206108 A034613 A253870 * A253543 A334372 A250912

Adjacent sequences: A253874 A253875 A253876 * A253878 A253879 A253880

Keyword

nonn

Author

R. H. Hardin, Jan 17 2015

Status

approved