A254893 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically

1267488, 5009638, 23589212, 141957783, 285887828, 758297009, 1890553676, 3588219247, 7194007206, 14018941983, 25650259374, 47390891398, 85725467588, 150529271707, 264769335646, 459746495818, 788665513302, 1356184575677

Offset

1,1

Comments

Column 7 of A254894

Links

R. H. Hardin, Table of n, a(n) for n = 1..114

Example

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

Crossrefs

Sequence in context: A081430 A254026 A254019 * A232203 A147670 A204397

Adjacent sequences: A254890 A254891 A254892 * A254894 A254895 A254896

Keyword

nonn

Author

R. H. Hardin, Feb 10 2015

Status

approved