A201027 Number of nX2 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

10, 10, 41, 295, 159, 4587, 8476, 33401, 272191, 128622, 4546620, 8993979, 36684736, 308393680, 140796536, 5332902231, 10823034414, 44858965451, 380690718127, 170636868384, 6712393127261, 13840721168804, 57974199126361

Offset

1,1

Comments

Column 2 of A201033

Links

R. H. Hardin, Table of n, a(n) for n = 1..50

Example

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

Crossrefs

Sequence in context: A185993 A109051 A371958 * A003875 A341836 A328530

Adjacent sequences: A201024 A201025 A201026 * A201028 A201029 A201030

Keyword

nonn

Author

R. H. Hardin Nov 26 2011

Status

approved