A166833 Number of nX3 1..5 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nonincreasing order.

0, 55, 1770, 17096, 99184, 429082, 1525876, 4704927

Offset

1,2

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for n=3
...2.2.1...3.1.1...2.1.1...4.3.1...2.1.1...2.2.1...5.2.1...3.2.1...3.2.1
...2.2.5...4.2.2...2.5.4...5.2.1...2.3.1...5.4.4...5.3.4...3.4.4...4.2.5
...3.2.4...5.2.2...3.3.4...5.2.1...5.4.4...5.5.3...5.4.4...5.5.5...5.5.5
------
...2.1.1...3.2.1...3.1.1...3.2.1...3.2.1...3.2.1...4.2.2...3.2.2...5.3.2
...4.3.1...4.5.1...4.4.4...4.2.5...5.4.1...3.4.1...5.2.1...3.4.1...5.5.1
...5.3.1...4.5.5...5.4.2...4.4.4...5.4.4...5.1.1...5.2.3...3.5.5...5.5.4

Crossrefs

Sequence in context: A327511 A215770 A320823 * A004352 A163722 A321034

Adjacent sequences: A166830 A166831 A166832 * A166834 A166835 A166836

Keyword

nonn

Author

R. H. Hardin Oct 21 2009

Status

approved