A201028 Number of nX3 0..4 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

17, 41, 296, 4238, 3602, 249211, 1055902, 8657121, 141222119, 127874916, 9959532190, 42952255903, 362588593757, 6102371958391, 5510612701449, 446546458762938, 1940123176320382, 16627869936250796, 282670200216013184

Offset

1,1

Comments

Column 3 of A201033

Links

R. H. Hardin, Table of n, a(n) for n = 1..20

Example

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

Crossrefs

Sequence in context: A269425 A164602 A078847 * A328022 A287308 A355700

Adjacent sequences: A201025 A201026 A201027 * A201029 A201030 A201031

Keyword

nonn

Author

R. H. Hardin Nov 26 2011

Status

approved