A236659 Number of (n+1)X(2+1) 0..2 arrays colored with the maximum plus the upper median plus the lower median of every 2X2 subblock

518, 5538, 58236, 631692, 6798520, 72887588, 782409904, 8415647974, 90402273416, 970965716040, 10431604290540, 112087441699440, 1204151665317648, 12936226566648792, 138981458800738608, 1493166954450047964

Offset

1,1

Comments

Column 2 of A236663

Links

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

Example

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

Crossrefs

Sequence in context: A345835 A253656 A233922 * A236642 A253726 A293085

Adjacent sequences: A236656 A236657 A236658 * A236660 A236661 A236662

Keyword

nonn

Author

R. H. Hardin, Jan 29 2014

Status

approved