A166785 Number of nX3 1..6 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.

0, 360, 30720, 474180, 3849036, 21761205

Offset

1,2

Links

Table of n, a(n) for n=1..6.

Example

Some solutions for n=3
...1.1.1...2.4.3...2.5.3...1.4.2...1.4.3...1.6.2...1.1.5...1.6.4...3.6.6
...1.6.4...6.4.1...6.5.1...6.3.2...2.2.5...5.3.4...3.4.2...1.6.6...4.2.1
...2.3.5...6.5.5...6.6.4...6.5.5...6.6.5...5.5.5...3.4.6...5.2.3...5.1.1
------
...1.1.6...2.2.5...3.1.6...4.2.3...1.4.6...5.2.4...4.4.1...1.3.5...2.5.4
...2.5.6...4.4.5...3.5.2...4.5.5...3.2.6...5.3.1...4.4.3...1.4.5...6.3.1
...3.4.6...6.3.1...5.5.4...6.5.1...5.2.2...5.3.6...5.6.2...6.2.5...6.3.3

Crossrefs

Sequence in context: A054648 A230684 A299955 * A265455 A200210 A263509

Adjacent sequences: A166782 A166783 A166784 * A166786 A166787 A166788

Keyword

nonn

Author

R. H. Hardin Oct 21 2009

Status

approved