A268102 Number of nX4 0..4 arrays with every repeated value in every row and column greater than or equal to the previous repeated value.

615, 378225, 232608375, 134114290153, 74223748225767, 39628019998736362, 20521193142295758827, 10349487304333681128069, 5100109128493173791160887, 2462335083143368720711957677, 1167299758811224888022222919608

Offset

1,1

Comments

Column 4 of A268103.

Links

R. H. Hardin, Table of n, a(n) for n = 1..16

Example

Some solutions for n=5
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..3....0..0..0..4....0..0..0..0....0..0..0..4....0..0..0..4
..0..0..0..0....0..0..1..4....0..0..3..0....0..0..1..1....0..0..2..1
..2..2..4..0....1..2..0..3....2..3..2..2....4..0..2..2....4..2..3..2

Crossrefs

Cf. A268103.

Sequence in context: A195809 A252923 A268245 * A190029 A252252 A260367

Adjacent sequences: A268099 A268100 A268101 * A268103 A268104 A268105

Keyword

nonn

Author

R. H. Hardin, Jan 26 2016

Status

approved