A236714 Number of (n+1)X(3+1) 0..2 arrays colored with the maximum plus the lower median of every 2X2 subblock

1940, 12276, 68892, 380270, 2285619, 13917166, 83440732, 483431170, 2925674836, 17483477028, 104684817992, 614845832954, 3705541301812, 21989049700170, 131802902193173, 778701497200782, 4678573664798165, 27722845606940274

Offset

1,1

Comments

Column 3 of A236719

Links

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

Example

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

Crossrefs

Sequence in context: A214478 A259513 A202529 * A203890 A200656 A201047

Adjacent sequences: A236711 A236712 A236713 * A236715 A236716 A236717

Keyword

nonn

Author

R. H. Hardin, Jan 30 2014

Status

approved