A263797 Number of (n+1) X (6+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits, and rows and columns lexicographically nonincreasing.

4, 4, 14, 18, 130, 616, 4991, 30130, 185795, 1022105, 5241463, 25403916, 113461481, 487306269, 1945016957, 7506601812, 27247184895, 95846215581, 320539609724, 1040469247149, 3239110764205, 9802122015937, 28643481268593, 81494869102471

Offset

1,1

Links

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

R. H. Hardin, Empirical recurrence of order 83

Formula

Empirical recurrence of order 83 (see link above)

Example

Some solutions for n=5
..1..1..0..0..0..0..0....1..1..1..1..0..0..0....1..1..1..1..0..0..0
..1..1..0..0..0..0..0....1..1..0..0..1..1..0....1..1..1..1..0..0..0
..0..0..1..1..1..1..0....1..0..1..0..1..1..1....1..1..1..1..0..0..0
..0..0..1..1..1..1..0....1..0..0..1..0..0..0....1..1..1..1..0..0..0
..0..0..0..0..0..0..0....0..1..1..0..0..0..0....1..1..0..0..0..0..0
..0..0..0..0..0..0..0....0..1..0..0..0..0..1....1..1..0..0..0..0..0

Crossrefs

Column 6 of A263799.

Sequence in context: A263796 A263871 A326982 * A331609 A174406 A270844

Adjacent sequences: A263794 A263795 A263796 * A263798 A263799 A263800

Keyword

nonn

Author

R. H. Hardin, Oct 26 2015

Status

approved