A267792 Number of 6Xn 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.

16, 256, 4096, 44742, 460598, 4245574, 37282358, 312449872, 2540944329, 20159382751, 157057696653, 1206033664639, 9157807121914, 68919889770321, 515005090966233, 3826399784437020, 28297799131011777, 208480992623889542

Offset

1,1

Comments

Row 6 of A267788.

Links

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

Example

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

Crossrefs

Cf. A267788.

Sequence in context: A171290 A136577 A190134 * A220252 A267976 A220803

Adjacent sequences: A267789 A267790 A267791 * A267793 A267794 A267795

Keyword

nonn

Author

R. H. Hardin, Jan 20 2016

Status

approved