A262329 Number of (n+1)X(5+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.

22, 99, 2106, 26131, 570922, 10789339, 237172426, 5028462531, 110616890922, 2411745951979, 53057962551946, 1164684632805331, 25623040149388522, 563395838251985019, 12394707380225550666, 272646042792758242531

Offset: 1

Author

R. H. Hardin, Sep 18 2015

Keywords

• nonn

Comments

Column 5 of A262332.

Examples

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

Links

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

Crossrefs

Cf. A262332.

Formula

Empirical: a(n) = 22*a(n-1) +215*a(n-2) -4730*a(n-3) -14143*a(n-4) +311146*a(n-5) +364285*a(n-6) -8014270*a(n-7) -3615956*a(n-8) [phone]*a(n-9) +9486400*a(n-10) -208700800*a(n-11)