A258608 Number of (n+2)X(4+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum

6056521, 16806958, 20602521, 26101881, 42003361, 87260319, 168065296, 336081087, 600593049, 1104953167, 1878008896, 3265742205, 5334257296, 8852106046, 13973131264, 22289465664, 34154366481, 52671100026, 78627524836

Offset

1,1

Comments

Column 4 of A258612

Links

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

Example

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

Crossrefs

Cf. A258612

Sequence in context: A344278 A184385 A204497 * A237896 A254585 A254592

Adjacent sequences: A258605 A258606 A258607 * A258609 A258610 A258611

Keyword

nonn

Author

R. H. Hardin, Jun 05 2015

Status

approved