A237400 Number of (n+1) X (2+1) 0..3 arrays with the maximum plus the upper median plus the lower median minus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.

1540, 13924, 126848, 1200450, 11356368, 107575258, 1019532240, 9677144372, 91828244608, 870656179420, 8257010060008, 78380260564790, 743849267283708, 7052992728980384, 66890881275269768, 634973419568809332

Offset

1,1

Comments

Column 2 of A237403.

Links

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

Example

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

Crossrefs

Sequence in context: A133354 A283900 A104167 * A200429 A092717 A203134

Adjacent sequences: A237397 A237398 A237399 * A237401 A237402 A237403

Keyword

nonn

Author

R. H. Hardin, Feb 07 2014

Status

approved