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Search: id:A166788
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A166788 Number of nX4 1..4 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order. +0
1
24, 1848, 26152, 204257, 1146094, 5161406 (list; graph; listen)
OFFSET

1,1

EXAMPLE

Some solutions for n=3

...1.1.3.2...3.2.2.1...3.2.1.4...2.2.2.2...3.2.2.2...3.3.3.1...1.3.3.2

...1.4.2.2...3.2.4.4...3.3.1.4...3.4.2.2...3.3.3.3...3.4.2.1...1.3.4.4

...1.4.4.2...3.3.4.4...3.4.4.4...4.4.1.2...4.4.4.1...3.4.4.4...3.3.3.4

------

...2.2.2.2...1.1.2.2...2.4.4.1...2.2.3.3...2.2.1.1...1.2.2.4...1.1.2.4

...3.1.1.2...1.1.4.2...3.4.4.1...2.3.3.3...2.4.1.1...1.2.2.4...1.1.4.4

...4.4.1.2...1.3.4.2...3.4.4.1...2.4.3.1...4.4.1.3...1.2.3.4...3.1.1.4

CROSSREFS

Sequence in context: A112389 A054777 A084224 this_sequence A123794 A006685 A002671

Adjacent sequences: A166785 A166786 A166787 this_sequence A166789 A166790 A166791

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Oct 21 2009

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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