A255077 Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum one

2444, 14161, 103929, 630436, 4055975, 26388769, 170527280, 1103236225, 7182663455, 46658160025, 303191076660, 1970943633409, 12813977932328, 83294626774921, 541514961543114, 3520451643559236, 22886959282325820

Offset

1,1

Comments

Column 3 of A255082

Links

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

Example

Some solutions for n=3
..1..0..1..1..0....0..0..1..0..0....1..0..1..1..0....0..1..1..0..1
..0..1..1..1..0....0..1..1..1..1....0..1..1..1..1....0..1..1..0..0
..0..1..1..1..0....1..1..1..1..1....1..1..1..1..1....0..1..1..1..1
..0..1..1..1..0....1..0..1..1..0....0..1..1..1..1....0..1..1..0..0
..0..0..1..0..0....1..0..1..1..1....1..1..0..0..1....1..1..1..0..1

Crossrefs

Cf. A255082

Sequence in context: A259007 A259000 A256898 * A183629 A274684 A232141

Adjacent sequences: A255074 A255075 A255076 * A255078 A255079 A255080

Keyword

nonn

Author

R. H. Hardin, Feb 14 2015

Status

approved