A256807 Number of (n+2)X(5+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1

1731, 15291, 140031, 1226781, 10791281, 95609517, 845074953, 7462718887, 65946786795, 582793811989, 5149483657453, 45501162090307, 402065378129851, 3552750855171131, 31392826101389087, 277394754458635673

Offset

1,1

Comments

Column 5 of A256810

Links

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

Example

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

Crossrefs

Cf. A256810

Sequence in context: A234706 A211853 A252454 * A008745 A230967 A179914

Adjacent sequences: A256804 A256805 A256806 * A256808 A256809 A256810

Keyword

nonn

Author

R. H. Hardin, Apr 10 2015

Status

approved