A235581 Number of (n+1)X(3+1) 0..3 arrays with the difference of the upper median and minimum value of each 2X2 subblock in lexicographically nondecreasing order rowwise and columnwise

29902, 3187679, 344369103, 32581688349, 2793785197645, 214261916260111, 15035713561887040, 973801165792209725, 59003535198421265249, 3373507179902892313830, 183535917529408384073302

Offset

1,1

Comments

Column 3 of A235582

Links

R. H. Hardin, Table of n, a(n) for n = 1..88

Example

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

Crossrefs

Sequence in context: A274358 A235826 A235823 * A224612 A233946 A234735

Adjacent sequences: A235578 A235579 A235580 * A235582 A235583 A235584

Keyword

nonn

Author

R. H. Hardin, Jan 12 2014

Status

approved