A262847 Number of (n+2)X(5+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.

900, 31050, 771084, 14762016, 290338650, 5692555116, 108936025308, 2071613294466, 39520865526156, 752512142640600, 14283775460054754, 271538648699660460, 5162251935414132180, 98038344198110173098

Offset

1,1

Comments

Column 5 of A262849.

Links

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

Example

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

Crossrefs

Cf. A262849.

Sequence in context: A204320 A204316 A283953 * A356694 A359383 A374245

Adjacent sequences: A262844 A262845 A262846 * A262848 A262849 A262850

Keyword

nonn

Author

R. H. Hardin, Oct 03 2015

Status

approved