A262456 Number of (n+3)X(7+3) 0..1 arrays with each row and column divisible by 15, read as a binary number with top and left being the most significant bits.

69, 281, 3153, 52961, 2614661, 24095961, 589377041, 21554653569

Offset

1,1

Comments

Column 7 of A262457.

Links

Table of n, a(n) for n=1..8.

Example

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

Crossrefs

Cf. A262457.

Sequence in context: A158732 A069216 A158736 * A161486 A236158 A253342

Adjacent sequences: A262453 A262454 A262455 * A262457 A262458 A262459

Keyword

nonn

Author

R. H. Hardin, Sep 23 2015

Status

approved