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A166806 Number of nX4 1..3 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nondecreasing order. 0
3, 69, 443, 1871, 6301, 18295, 47655, 113995, 254280, 534707 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

...1.2.3.3...1.1.2.2...1.1.1.1...1.1.2.2...1.1.1.2...1.1.1.2...1.1.2.3

...2.2.2.3...1.2.2.2...1.1.3.3...1.1.2.2...1.1.1.2...1.1.3.2...1.2.2.3

...3.3.2.3...1.3.2.2...1.2.3.3...1.2.2.2...1.1.3.2...1.3.3.3...1.2.3.3

...3.3.3.3...3.3.2.2...1.2.3.3...1.2.2.3...1.2.2.2...3.3.3.3...2.2.3.3

------

...1.1.1.3...1.1.1.2...1.3.3.3...1.1.1.1...1.2.2.2...1.2.2.2...1.1.2.2

...1.1.3.3...1.1.3.2...2.2.3.3...1.1.2.3...1.2.2.2...2.2.2.3...1.1.2.3

...1.2.3.2...1.2.2.2...2.3.3.3...1.2.2.3...1.2.2.3...2.2.3.3...1.1.2.3

...2.2.2.2...1.2.2.2...3.3.3.3...1.2.3.3...1.2.2.3...3.3.3.3...2.2.2.2

CROSSREFS

Sequence in context: A270869 A241222 A166835 * A219070 A086223 A089455

Adjacent sequences:  A166803 A166804 A166805 * A166807 A166808 A166809

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2009

STATUS

approved

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Last modified December 15 20:00 EST 2019. Contains 330000 sequences. (Running on oeis4.)