A166803 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 nondecreasing order.

0, 105, 2930, 26463, 147567, 619558, 2147828, 6473764

Offset

1,2

Links

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

Example

Some solutions for n=3
...1.2.4...1.1.2...1.1.3...1.5.5...2.2.4...2.2.4...1.3.3...2.2.4...1.1.5
...1.3.5...1.4.2...2.2.5...4.2.2...2.5.1...2.2.4...4.3.3...3.3.3...1.4.5
...1.3.5...5.3.2...2.4.4...4.3.3...3.3.3...3.5.1...5.2.2...3.5.1...2.3.3
------
...3.3.4...1.3.5...1.1.5...1.2.4...1.2.5...1.3.4...1.2.4...1.1.5...1.4.4
...5.5.1...2.4.5...2.3.4...1.3.3...2.2.5...2.3.5...3.5.4...3.3.5...2.2.4
...5.5.2...4.4.5...2.3.4...1.3.5...4.3.3...5.5.5...3.5.4...3.4.2...5.3.4

Crossrefs

Sequence in context: A112497 A220822 A166821 * A262075 A018233 A154633

Adjacent sequences: A166800 A166801 A166802 * A166804 A166805 A166806

Keyword

nonn

Author

R. H. Hardin Oct 21 2009

Status

approved