A166790 Number of n X 5 1..3 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.

36, 876, 9289, 67453, 377824, 1765350

Offset

1,1

Links

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

Example

Some solutions for n=3
...1.1.2.2.2...2.2.2.2.2...1.1.1.2.2...1.1.1.1.1...2.2.2.2.2...2.1.3.3.3
...3.1.1.1.2...2.2.3.2.1...2.2.1.2.3...1.1.1.2.1...3.2.3.1.1...2.2.3.3.3
...3.2.2.2.2...3.3.3.3.1...2.2.2.2.2...3.3.2.2.1...3.3.3.3.1...3.3.3.3.3
------
...2.2.2.1.1...1.1.1.1.1...2.2.2.2.2...1.1.3.3.2...3.1.1.1.1...1.1.1.1.1
...2.2.2.2.2...1.1.3.3.1...2.3.2.2.1...1.3.3.2.2...3.2.2.2.2...1.1.1.1.1
...3.3.3.3.2...1.2.3.3.3...3.3.3.2.2...2.2.2.2.2...3.3.2.2.2...1.1.2.1.3

Crossrefs

Sequence in context: A346323 A243569 A145150 * A001812 A229680 A169836

Adjacent sequences: A166787 A166788 A166789 * A166791 A166792 A166793

Keyword

nonn

Author

R. H. Hardin Oct 21 2009

Status

approved