A253815 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically

12680, 60392, 214596, 554638, 1826190, 5735723, 19727216, 63219653, 215108264, 694075512, 2300636010, 7389478710, 24092560022, 77484299331, 251219943780, 810727615448, 2627331660592, 8506063476792, 27597699340414, 89556615821316

Offset

1,1

Comments

Column 3 of A253820

Links

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

Example

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

Crossrefs

Sequence in context: A159203 A254799 A254806 * A083602 A105655 A124411

Adjacent sequences: A253812 A253813 A253814 * A253816 A253817 A253818

Keyword

nonn

Author

R. H. Hardin, Jan 14 2015

Status

approved