login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A166845 Number of nX3 1..6 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, 30, 3888, 69078, 606469, 3604962, 16631923 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=3

...4.2.1...5.3.1...5.3.1...4.3.2...2.2.1...4.2.1...3.2.2...2.2.1...3.2.1

...4.2.1...6.2.2...5.3.4...4.4.1...3.2.4...4.5.6...3.4.1...3.2.5...3.5.5

...5.6.3...6.4.2...6.6.2...6.5.5...6.5.4...5.5.3...6.5.1...4.4.6...6.4.4

------

...3.2.1...6.2.1...2.2.1...4.2.1...4.1.1...3.2.2...4.3.3...4.3.1...4.3.2

...3.6.6...6.5.4...3.3.3...6.5.3...4.4.2...3.6.1...5.1.1...4.5.1...4.6.1

...5.4.6...6.6.3...6.4.5...6.6.6...6.3.5...4.5.1...6.6.2...6.5.2...5.6.1

CROSSREFS

Sequence in context: A159993 A153470 A127849 * A166834 A216728 A196466

Adjacent sequences:  A166842 A166843 A166844 * A166846 A166847 A166848

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 21 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified May 21 02:36 EDT 2013. Contains 225474 sequences.