A166794 Number of nX8 1..2 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order.

14, 127, 2700, 46783, 586312

Offset

1,1

Links

Table of n, a(n) for n=1..5.

Example

Some solutions for n=3
...1.1.1.1.1.1.1.2...1.1.1.1.1.2.2.2...2.2.1.1.1.1.2.2...1.1.1.1.1.1.1.1
...2.2.1.2.2.1.1.2...2.1.2.1.2.2.2.2...2.2.2.2.1.1.2.2...1.1.1.2.1.1.1.1
...2.2.2.2.2.2.2.2...2.2.2.2.2.2.2.2...2.2.2.2.2.2.2.2...1.2.2.2.2.2.1.1
------
...2.2.1.1.2.2.2.2...2.2.2.1.1.1.2.2...1.1.1.1.1.1.1.2...1.1.1.1.1.1.1.1
...2.2.2.2.2.2.2.2...2.2.2.2.1.2.2.2...1.1.2.1.1.2.2.2...2.2.1.1.1.1.1.1
...2.2.2.2.2.2.2.2...2.2.2.2.2.2.2.2...2.2.2.2.2.2.2.2...2.2.2.2.2.2.1.1

Crossrefs

Sequence in context: A041368 A026882 A173408 * A229386 A208047 A301379

Adjacent sequences: A166791 A166792 A166793 * A166795 A166796 A166797

Keyword

nonn

Author

R. H. Hardin Oct 21 2009

Status

approved