A254738 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column minus the sum of the minimums of the diagonal and antidiagonal nondecreasing horizontally and vertically.

13504, 130554, 1209260, 9683835, 74915756, 573664291, 4337693061, 32485851354, 242323566366, 1802019996233, 13373622677425, 99124066039543, 734136734199049, 5434315156756094, 40213574816124165, 297515317687341829

Offset

1,1

Comments

Column 3 of A254743

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=2
..1..1..1..0..1....0..0..1..1..1....0..0..1..1..1....0..0..0..1..1
..1..0..0..1..0....1..0..0..0..1....0..0..0..1..0....1..0..0..1..1
..0..0..0..0..0....0..1..0..1..1....1..0..0..0..0....0..1..0..1..1
..0..1..0..1..0....1..1..1..1..1....0..1..0..1..1....0..1..0..0..1

Crossrefs

Sequence in context: A248444 A257149 A257156 * A342858 A064981 A275370

Adjacent sequences: A254735 A254736 A254737 * A254739 A254740 A254741

Keyword

nonn

Author

R. H. Hardin, Feb 06 2015

Status

approved