A262916 Number of (n+1)X(7+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits.

1, 86, 783, 17333, 1444558, 30497815, 1282949605, 102437680622

Offset: 1

Author

R. H. Hardin, Oct 04 2015

Keywords

• nonn

Comments

Column 7 of A262917.

Examples

			Some solutions for n=4
..1..1..0..1..1..0..0..0....0..1..0..0..0..1..0..1....1..0..0..0..0..1..0..0
..0..1..0..1..0..0..0..1....0..0..0..0..0..0..1..1....0..0..0..1..0..0..1..0
..1..1..1..1..1..0..0..1....1..1..1..1..1..1..1..1....1..1..1..1..0..1..1..0
..0..0..1..0..0..0..0..1....1..0..1..1..1..0..1..0....0..1..1..1..0..0..1..0
..1..0..1..0..1..0..0..0....1..1..1..1..1..1..0..0....1..1..1..0..0..1..0..0
		

Crossrefs

Cf. A262917.