A201388 Number of nX3 0..3 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other

4, 137, 1606, 5897, 236224, 3364770, 19735330, 40088345, 1066040173, 10207216063, 41478543314, 60255150730, 1228071405908, 9109985067401, 29080781926297, 33671540790223, 567086887068128, 3500195283945353, 9371250160350500

Offset

1,1

Comments

Column 3 of A201393

Links

R. H. Hardin, Table of n, a(n) for n = 1..29

Example

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

Crossrefs

Sequence in context: A001374 A229416 A155207 * A089666 A363114 A029850

Adjacent sequences: A201385 A201386 A201387 * A201389 A201390 A201391

Keyword

nonn

Author

R. H. Hardin Nov 30 2011

Status

approved