A236038 Number of (n+1)X(2+1) 0..3 arrays colored with the difference of the upper median and the lower median in each 2X2 subblock

2404, 42264, 722548, 12435076, 215833320, 3742165712, 64753334132, 1120625605524, 19402307063528, 335925911180296, 5815540423521376, 100678169726567032, 1742970553687774724, 30174878799319673848

Offset

1,1

Comments

Column 2 of A236041

Links

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

R. H. Hardin, Empirical recurrence of order 87

Formula

Empirical recurrence of order 87 (see link above)

Example

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

Crossrefs

Sequence in context: A251774 A031547 A031727 * A323271 A283783 A260274

Adjacent sequences: A236035 A236036 A236037 * A236039 A236040 A236041

Keyword

nonn

Author

R. H. Hardin, Jan 18 2014

Status

approved