A201341 Number of nX3 0..4 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease

0, 15, 295, 6304, 120750, 1977305, 28778603, 384578235, 4826582648, 57769170135, 666507302212, 7467860256482, 81701886884909, 876350926474594, 9244732890227899, 96149151282735127, 987831159810408273

Offset

1,2

Comments

Column 3 of A201345

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

Some solutions for n=4
..0..2..2....0..1..1....0..4..3....0..0..2....0..0..2....0..2..1....0..4..3
..3..3..3....4..4..4....1..4..3....2..4..3....0..2..3....0..2..1....2..4..3
..4..4..4....2..3..4....2..4..3....4..4..4....4..4..4....1..4..3....3..4..4
..3..3..4....4..4..4....1..4..4....3..3..4....2..3..4....3..3..3....3..4..4

Crossrefs

Sequence in context: A185809 A231792 A201029 * A144349 A375222 A009064

Adjacent sequences: A201338 A201339 A201340 * A201342 A201343 A201344

Keyword

nonn

Author

R. H. Hardin Nov 30 2011

Status

approved