A262852 Number of (3+2)X(n+2) 0..1 arrays with each row divisible by 7 and column not divisible by 7, read as a binary number with top and left being the most significant bits.

27, 132, 1336, 37635, 771084, 17912392, 481968171, 12572589132, 333224229896, 8994193541379, 241857613967412, 6515666351143848, 175918432063803627, 4747650731553770292, 128153708240382030872, 3460143599773663664643

Offset: 1

Author

R. H. Hardin, Oct 03 2015

Keywords

• nonn

Comments

Row 3 of A262849.

Examples

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

Links

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

Crossrefs

Cf. A262849.