A236873 Number of (n+1) X (6+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2 X 2 subblock equal.

63867, 1502355, 32940090, 826928057, 20189154641, 522548961680, 13357989313483, 351261186124485, 9186615966144122, 243780314369156071, 6455913230229791315, 172317214170481120614, 4597365744853239471415, 123201844535980804738089, 3302374924557123826197278, 88751032504243587612623623

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..148

Example

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

Crossrefs

Column 6 of A236875.

Sequence in context: A072693 A119276 A145437 * A389427 A236608 A214758

Adjacent sequences: A236870 A236871 A236872 * A236874 A236875 A236876

Keyword

nonn

Author

R. H. Hardin, Feb 01 2014

Status

approved