A236316 Number of (n+1)X(2+1) 0..3 arrays colored with the maximum plus the lower median minus the minimum of every 2X2 subblock

2744, 61262, 1362884, 30415198, 680489392, 15223905144, 340350445264, 7608971725444, 170137169799572, 3804313550670246, 85061863798502284, 1901919927648596130, 42525951840604064540, 950859296217244413762

Offset

1,1

Comments

Column 2 of A236319

Links

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

Example

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

Crossrefs

Sequence in context: A250821 A250498 A180695 * A114768 A013801 A013872

Adjacent sequences: A236313 A236314 A236315 * A236317 A236318 A236319

Keyword

nonn

Author

R. H. Hardin, Jan 22 2014

Status

approved