A254912 Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally

219706, 146168, 56618, 38461, 21730, 20173, 16945, 15221, 16516, 19402, 21128, 24860, 29918, 34438, 41417, 48432, 55653, 65527, 77019, 90158, 104074, 120406, 139028, 160707, 185166, 210852, 239269, 271368, 307712, 348186, 390329, 436989

Offset

1,1

Comments

Row 6 of A254907

Links

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

Example

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

Crossrefs

Sequence in context: A201227 A185531 A258678 * A254905 A257207 A204968

Adjacent sequences: A254909 A254910 A254911 * A254913 A254914 A254915

Keyword

nonn

Author

R. H. Hardin, Feb 10 2015

Status

approved