A254723 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the central row and the central column and the two medians of the diagonal and antidiagonal nondecreasing horizontally and vertically

11677, 76615, 520824, 3438279, 21750375, 138938314, 888613045, 5611704536, 35547726137, 224988752752, 1423190885465, 8996675550495, 56886752817673, 359660082585566, 2273998031761468, 14377323035637119, 90900829840219324

Offset

1,1

Comments

Column 3 of A254728

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..1..0..0..1....0..0..1..0..0....0..0..1..1..0
..0..1..1..1..1....0..1..0..0..1....1..0..0..1..0....1..0..0..0..1
..1..1..1..1..0....0..1..0..1..0....0..0..1..1..0....0..0..1..1..1
..1..1..1..1..0....0..1..1..1..1....0..1..1..1..1....1..0..1..1..1

Crossrefs

Sequence in context: A223691 A254770 A254777 * A354212 A031631 A250923

Adjacent sequences: A254720 A254721 A254722 * A254724 A254725 A254726

Keyword

nonn

Author

R. H. Hardin, Feb 06 2015

Status

approved