A254238 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally and vertically

41140, 167637, 970333, 5606832, 21582041, 80104299, 277964612, 863193207, 2642194905, 7927642723, 23138956240, 66674563382, 190259311816, 537311258526, 1507557132590, 4209998576739, 11703042069925, 32423030456075

Offset

1,1

Comments

Column 4 of A254242

Links

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

Example

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

Crossrefs

Sequence in context: A344456 A257422 A257429 * A286891 A183667 A188488

Adjacent sequences: A254235 A254236 A254237 * A254239 A254240 A254241

Keyword

nonn

Author

R. H. Hardin, Jan 27 2015

Status

approved