Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A166843
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
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
1
0, 41, 476, 2733, 11045, 35848, 99847, 248101, 563888, 1192579, 2376276, 4502553 (list; graph; listen)
OFFSET

1,2

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: A061643 A037061 A103735 this_sequence A098958 A086949 A078947

Adjacent sequences: A166840 A166841 A166842 this_sequence A166844 A166845 A166846

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Oct 21 2009

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


AT&T Labs Research