A254240 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically

514920, 2228050, 13376848, 80104299, 249684274, 940766774, 3047978749, 8696762202, 26336306288, 78716251434, 225295831770, 651870318928, 1860285741290, 5237337951769, 14747905907768, 41414839936846

Offset

1,1

Comments

Column 6 of A254242

Links

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

Example

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

Crossrefs

Sequence in context: A329461 A257424 A257431 * A087096 A072959 A048527

Adjacent sequences: A254237 A254238 A254239 * A254241 A254242 A254243

Keyword

nonn

Author

R. H. Hardin, Jan 27 2015

Status

approved