A205178 Number of (n+1) X 6 0..3 arrays with the permanents of 2 X 2 subblocks nondecreasing rightwards and downwards.

1284356, 431119786, 109885347688, 20824074630163, 3735895473961770, 542569301045830422, 77180383679719759430, 9710006986385118092924, 1208066992589598190873206, 140685731309191572681679896

Offset

1,1

Comments

Column 5 of A205181.

Links

R. H. Hardin, Table of n, a(n) for n = 1..32

Example

Some solutions for n=4
..3..1..3..1..3..3....0..2..2..1..2..0....1..0..3..3..3..3....2..0..3..0..2..0
..3..1..3..1..3..2....0..1..0..2..2..3....3..2..1..3..1..3....3..0..1..0..1..0
..3..1..3..1..3..3....1..3..2..0..3..0....0..1..3..3..3..3....2..0..3..1..0..1
..2..2..2..3..2..3....0..1..0..2..3..3....3..2..1..3..3..3....0..0..0..1..3..0
..2..2..2..3..3..3....3..2..3..0..3..0....2..1..3..3..3..3....3..3..3..2..1..3

Crossrefs

Cf. A205181.

Sequence in context: A118419 A250619 A091291 * A205663 A205952 A205463

Adjacent sequences: A205175 A205176 A205177 * A205179 A205180 A205181

Keyword

nonn

Author

R. H. Hardin, Jan 22 2012

Status

approved