A236587 Number of (n+1)X(3+1) 0..3 arrays colored with the maximum plus the upper median minus the minimum of every 2X2 subblock

31944, 1705350, 91575854, 4933946082, 264737751595, 14235465951882, 766159274223230, 41212062870939190, 2215994906000859055, 119177838743245859518, 6410258802513239722808, 344771013377583005396332

Offset

1,1

Comments

Column 3 of A236588

Links

R. H. Hardin, Table of n, a(n) for n = 1..97

Example

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

Crossrefs

Sequence in context: A134124 A203738 A234995 * A255079 A354079 A235309

Adjacent sequences: A236584 A236585 A236586 * A236588 A236589 A236590

Keyword

nonn

Author

R. H. Hardin, Jan 29 2014

Status

approved