A237388 Number of (n+1) X (4+1) 0..2 arrays colored with the maximum plus the upper median minus the minimum of every 2 X 2 subblock.

12624, 183764, 2712486, 41204198, 629612266, 9678405410, 148794944054, 2283761004002, 34983096932494, 536585050368130, 8240252282574750, 126487165848399856, 1940113960361065176, 29764767650582758670

Offset: 1

Author

R. H. Hardin, Feb 07 2014

Keywords

• nonn

Comments

Column 4 of A237391.

Examples

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

Links

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

Crossrefs

Cf. A237391.