A262318 Number of (n+2)X(6+2) 0..1 arrays with each row and column divisible by 7, read as a binary number with top and left being the most significant bits.

37, 145, 1009, 42661, 413893, 7914829, 281951533, 7901300449, 257187953521

Offset

1,1

Comments

Column 6 of A262319.

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Cf. A262319.

Sequence in context: A337258 A350405 A158591 * A262921 A031690 A157324

Adjacent sequences: A262315 A262316 A262317 * A262319 A262320 A262321

Keyword

nonn

Author

R. H. Hardin, Sep 17 2015

Status

approved