A237386 Number of (n+1)X(2+1) 0..2 arrays colored with the maximum plus the upper median minus the minimum of every 2X2 subblock

434, 3240, 24340, 183764, 1379886, 10406596, 78612538, 593121116, 4469323758, 33698637958, 254212599808, 1917348305880, 14457809113682, 109028076862576, 822269791408032, 6201236835251186, 46765472722995182, 352677245924001228

Offset

1,1

Comments

Column 2 of A237391

Links

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

R. H. Hardin, Empirical recurrence of order 58

Formula

Empirical recurrence of order 58 (see link above)

Example

Some solutions for n=4
..0..0..0....0..2..2....0..2..2....1..1..1....0..2..2....0..2..2....0..2..1
..2..1..1....1..1..0....1..1..0....0..0..2....2..1..2....0..2..2....0..0..0
..1..1..1....0..0..0....1..0..0....0..0..2....1..2..0....0..0..0....0..0..2
..1..1..2....0..1..2....0..0..0....0..1..1....1..1..1....1..0..0....2..0..1
..0..2..0....2..1..1....2..1..0....2..1..0....1..1..2....1..2..2....1..1..0

Crossrefs

Sequence in context: A054982 A108785 A219033 * A259294 A050507 A145318

Adjacent sequences: A237383 A237384 A237385 * A237387 A237388 A237389

Keyword

nonn

Author

R. H. Hardin, Feb 07 2014

Status

approved