A236089 Number of (n+1)X(1+1) 0..2 arrays colored with the difference of the maximum and the upper median in each 2X2 subblock

81, 344, 1512, 6444, 28060, 119928, 519616, 2226672, 9647072, 41385504, 178859072, 768389952, 3320384320, 14272229248, 61597584640, 264983260416, 1143469114624, 4920340250112, 21219592558592, 91348908986368, 393905359921152

Offset

1,1

Comments

Column 1 of A236096

Links

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

Formula

Empirical: a(n) = 12*a(n-3) +220*a(n-4) +120*a(n-5) +736*a(n-6) +464*a(n-7) -176*a(n-8) +224*a(n-9) -256*a(n-10) for n>11

Example

Some solutions for n=5
..2..2....0..0....0..1....2..0....2..0....2..2....2..2....2..2....2..1....0..2
..0..2....1..2....0..1....2..0....2..1....2..0....2..0....1..0....2..0....2..1
..0..0....2..1....1..2....0..0....1..0....0..0....0..1....2..0....0..0....1..1
..0..1....1..0....2..1....1..1....1..0....2..1....0..1....0..0....1..2....1..0
..0..1....1..0....0..1....2..1....1..2....1..2....1..2....0..0....2..1....2..1
..1..2....2..0....0..1....2..1....2..0....1..1....2..2....0..1....1..1....0..2

Crossrefs

Sequence in context: A236096 A237377 A237242 * A236737 A236730 A237324

Adjacent sequences: A236086 A236087 A236088 * A236090 A236091 A236092

Keyword

nonn

Author

R. H. Hardin, Jan 19 2014

Status

approved