A184405 1/6 the number of (n+2)X4 0..2 arrays with each 3X3 subblock containing two of one value, three of another, and four of the last

16140, 326100, 6361037, 127484430, 2555137939, 51389641795, 1035065757204, 20870295045966, 421098204454741, 8500324048315260, 171638818042385741, 3466424314411616868, 70017331814282370642, 1414381291357998662563

Offset

1,1

Comments

Column 2 of A184407

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions with a(1,1)=0 for 6X4
..0..0..0..0....0..0..0..0....0..0..0..2....0..0..0..2....0..0..0..2
..2..0..1..2....2..0..1..2....2..0..1..1....2..0..1..0....2..0..1..0
..2..1..1..2....2..1..1..2....2..1..1..2....2..1..1..2....2..1..1..2
..1..0..0..0....1..0..2..1....2..0..2..2....2..0..1..2....2..0..2..1
..1..2..0..1....1..0..2..2....1..1..0..2....2..1..0..0....2..1..0..2
..0..2..1..2....1..0..1..2....1..1..0..2....2..2..0..2....2..0..1..1

Crossrefs

Sequence in context: A335305 A267118 A145717 * A134120 A109566 A235244

Adjacent sequences: A184402 A184403 A184404 * A184406 A184407 A184408

Keyword

nonn

Author

R. H. Hardin Jan 12 2011

Status

approved