A166837 - OEIS

A166837

Number of nX5 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 nonincreasing order.

6, 146, 1093, 5770, 25317

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=4

...3.2.1.1.1...2.1.1.1.1...1.1.1.1.1...2.2.1.1.1...2.2.2.2.1...3.3.3.1.1

...3.2.2.2.2...2.2.2.2.1...3.3.2.2.1...2.2.1.1.1...2.2.2.2.1...3.3.3.3.1

...3.2.3.3.3...3.2.2.2.2...3.3.2.2.1...3.2.3.1.1...3.2.2.1.1...3.3.3.3.2

...3.3.3.3.3...3.2.2.2.2...3.3.3.2.1...3.3.3.3.1...3.3.2.2.2...3.3.3.3.3

------

...2.2.2.1.1...2.2.1.1.1...2.2.1.1.1...3.2.2.1.1...2.2.1.1.1...3.2.2.1.1

...3.3.2.3.3...2.2.1.1.1...3.2.2.1.1...3.2.2.2.2...2.2.2.2.1...3.2.2.1.1

...3.3.2.3.3...3.2.3.3.1...3.3.2.1.1...3.3.2.3.3...3.2.1.1.1...3.2.2.3.3

...3.3.3.3.3...3.3.3.1.1...3.3.3.3.1...3.3.3.3.3...3.2.2.2.2...3.3.3.3.3

CROSSREFS

Sequence in context: A041271 A196964 A121473 * A166809 A250389 A358800

Adjacent sequences: A166834 A166835 A166836 * A166838 A166839 A166840

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2009

STATUS

approved