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A166843 Number of nX3 1..4 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 decreasing order. 0
0, 41, 476, 2733, 11045, 35848, 99847, 248101, 563888, 1192579, 2376276, 4502553 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=4

...3.2.1...4.2.2...2.1.1...2.2.1...2.2.2...2.1.1...2.2.2...3.2.1...4.2.1

...3.4.1...4.3.3...3.3.1...3.2.1...3.2.1...2.2.2...3.2.1...3.3.3...4.3.3

...3.4.4...4.4.1...4.4.1...3.4.1...3.2.1...3.4.2...3.3.3...4.3.4...4.4.4

...4.4.4...4.4.4...4.4.1...3.4.4...4.4.1...3.4.2...3.4.4...4.4.4...4.4.4

------

...4.2.1...3.3.2...2.1.1...2.1.1...2.1.1...3.2.1...3.1.1...1.1.1...3.2.2

...4.4.1...3.3.2...2.2.1...4.3.1...2.3.1...3.2.1...3.3.2...2.1.1...3.3.2

...4.4.3...4.1.2...2.3.3...4.3.1...4.4.1...3.3.1...4.4.4...4.1.1...4.4.1

...4.4.4...4.4.4...4.4.3...4.4.1...4.4.4...4.4.4...4.4.4...4.4.3...4.4.1

CROSSREFS

Sequence in context: A211154 A103735 A177491 * A098958 A086949 A177504

Adjacent sequences:  A166840 A166841 A166842 * A166844 A166845 A166846

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2009

STATUS

approved

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Last modified May 24 22:42 EDT 2013. Contains 225631 sequences.