A263121 Number of (n+3)X(3+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits.

168, 1664, 10356, 56288, 238104, 1294448, 6844676, 35274768, 166684808, 837700064, 4262833076, 21682367296, 106913755512, 530662478800, 2665248077636, 13441453266928, 67154044231144, 333650046421056

Offset

1,1

Comments

Column 3 of A263124.

Links

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

Example

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

Crossrefs

Cf. A263124.

Sequence in context: A070835 A112551 A303622 * A216107 A235932 A235926

Adjacent sequences: A263118 A263119 A263120 * A263122 A263123 A263124

Keyword

nonn

Author

R. H. Hardin, Oct 10 2015

Status

approved