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Search: id:A166783
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A166783 Number of nX3 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
0, 252, 2624, 14259, 55748, 177136, 486512, 1197675, 2705424, 5699396, 11330072, 21443587 (list; graph; listen)
OFFSET

1,2

EXAMPLE

Some solutions for n=3

...3.1.3...3.1.2...2.2.1...1.1.4...1.2.2...1.1.2...3.3.3...1.1.4...1.4.3

...3.3.3...4.4.4...2.3.1...1.2.2...2.2.4...4.3.2...3.3.3...1.2.4...1.4.3

...4.3.2...4.4.4...4.3.3...3.3.3...2.3.4...4.3.2...4.2.1...1.3.4...2.2.2

------

...3.2.1...2.3.1...2.2.2...1.1.1...2.3.1...1.2.2...1.1.1...1.1.1...1.1.1

...3.2.1...4.4.1...2.3.3...1.3.2...3.3.1...4.4.2...2.3.3...2.2.2...4.3.3

...4.1.1...4.4.1...4.1.1...4.4.4...3.4.1...4.4.3...3.3.4...4.2.3...4.4.2

CROSSREFS

Sequence in context: A046379 A154045 A154073 this_sequence A104679 A117281 A152466

Adjacent sequences: A166780 A166781 A166782 this_sequence A166784 A166785 A166786

KEYWORD

nonn

AUTHOR

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

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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