A201387 Number of nX2 0..3 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other

6, 8, 137, 98, 1416, 715, 9424, 3977, 47509, 17474, 195020, 65271, 685365, 212409, 2127347, 621431, 5970292, 1659237, 15403848, 4110026, 37018776, 9536251, 83699540, 20927871, 179497978, 43720826, 367499724, 87495195, 722212122

Offset

1,1

Comments

Column 2 of A201393

Links

R. H. Hardin, Table of n, a(n) for n = 1..78

Example

Some solutions for n=10
..0..0....0..0....0..1....0..1....0..1....0..0....0..0....0..1....0..0....0..0
..0..2....0..0....0..2....0..1....0..1....0..1....0..0....0..2....0..3....0..1
..1..3....0..2....1..0....0..2....0..3....0..1....0..3....0..2....1..0....0..1
..2..0....1..1....1..0....1..0....0..3....0..3....1..1....0..3....1..1....0..2
..2..1....1..2....1..1....1..2....1..1....1..2....1..1....1..2....1..2....1..2
..2..1....2..2....2..0....1..2....2..1....1..2....2..1....1..3....2..1....1..2
..2..3....2..3....2..3....2..0....2..2....1..3....2..3....2..0....2..3....2..3
..3..0....3..1....2..3....2..3....2..2....3..2....3..2....2..3....3..0....2..3
..3..1....3..1....2..3....3..3....3..0....3..2....3..2....3..1....3..2....3..1
..3..1....3..3....3..3....3..3....3..3....3..2....3..2....3..1....3..2....3..3

Crossrefs

Sequence in context: A013239 A013235 A257869 * A013236 A013242 A169971

Adjacent sequences: A201384 A201385 A201386 * A201388 A201389 A201390

Keyword

nonn

Author

R. H. Hardin Nov 30 2011

Status

approved