A255158 Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 1 and no row sum 0 or 1 and no column sum 0 or 1

4105, 27903, 232685, 1863728, 15122739, 124074113, 1010639534, 8227259834, 67114117967, 547056786780, 4456616605691, 36317305045035, 295992187274808, 2412175546896088, 19657082576334996, 160190127028086548

Offset

1,1

Comments

Column 7 of A255159

Links

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

Example

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

Crossrefs

Cf. A255159

Sequence in context: A346347 A227915 A168345 * A077188 A077190 A204530

Adjacent sequences: A255155 A255156 A255157 * A255159 A255160 A255161

Keyword

nonn

Author

R. H. Hardin, Feb 15 2015

Status

approved