A254479 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally and vertically

47140, 170900, 686988, 2539310, 8704471, 28312934, 86663046, 247709745, 682297737, 1838103410, 4927478832, 13269418779, 36050827342, 98774668579, 272555387169, 755673648263, 2102288791960, 5859599429661, 16356310617764

Offset

1,1

Comments

Column 4 of A254483

Links

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

Example

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

Crossrefs

Sequence in context: A212842 A254549 A254556 * A227710 A215840 A257723

Adjacent sequences: A254476 A254477 A254478 * A254480 A254481 A254482

Keyword

nonn

Author

R. H. Hardin, Jan 31 2015

Status

approved