A236655 Number of (n+1)X(2+1) 0..3 arrays colored with the sum of the upper and lower median values of each 2X2 subblock

2896, 70896, 1680044, 41161740, 1012773632, 24759554960, 605124123248, 14808403341412, 362355875717384, 8864560404002524, 216868775687376872, 5305866579511115792, 129810446666488607476, 3175848379804617003632

Offset

1,1

Comments

Column 2 of A236657

Links

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

Example

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

Crossrefs

Sequence in context: A235575 A281657 A234886 * A235822 A235825 A235580

Adjacent sequences: A236652 A236653 A236654 * A236656 A236657 A236658

Keyword

nonn

Author

R. H. Hardin, Jan 29 2014

Status

approved