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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
24, 1848, 26152, 204257, 1146094, 5161406 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..6.

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: A084224 A227257 A222999 * A123794 A269648 A269338

Adjacent sequences:  A166785 A166786 A166787 * A166789 A166790 A166791

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2009

STATUS

approved

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Last modified May 9 10:48 EDT 2021. Contains 343732 sequences. (Running on oeis4.)