A268245 Number of nX4 0..4 arrays with every repeated value in every row greater than or equal to, and every column greater than, the previous repeated value.

615, 378225, 197555340, 98956027822, 46876747497685, 21318913339752967, 9353951527477140513, 3981090561058373419699, 1649936874871844695534398, 668021353800373153394497970, 264913936364845485109525894305

Offset

1,1

Comments

Column 4 of A268246.

Links

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

Example

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

Crossrefs

Cf. A268246.

Sequence in context: A191938 A195809 A252923 * A268102 A190029 A252252

Adjacent sequences: A268242 A268243 A268244 * A268246 A268247 A268248

Keyword

nonn

Author

R. H. Hardin, Jan 29 2016

Status

approved