A237294 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock equal

1128, 7544, 56752, 471588, 4167736, 38817072, 375021656, 3729166264, 37856371660, 390487433404, 4075963878136, 42940176794836, 455574781777652, 4860153197230628, 52070924104772852, 559748945641992408

Offset

1,1

Comments

Column 2 of A237299

Links

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

R. H. Hardin, Empirical recurrence of order 53

Formula

Empirical recurrence of order 53 (see link above)

Example

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

Crossrefs

Sequence in context: A203830 A252299 A203063 * A307174 A278732 A278434

Adjacent sequences: A237291 A237292 A237293 * A237295 A237296 A237297

Keyword

nonn

Author

R. H. Hardin, Feb 06 2014

Status

approved