login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A202739 Number of nX5 0..1 arrays with row sums equal and column sums unequal to adjacent columns 1
2, 54, 638, 6870, 75302, 827502, 8870150, 93402390, 969837470, 10133577294, 104168885570, 1073411553030, 11008021249370, 112437630047286, 1151811769082618, 11687452535796630, 118872499759443950 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A202742
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..0....0..1..0..0..1....1..0..0..0..1....0..1..1..1..0
..0..1..0..1..0....1..1..0..0..0....0..0..0..1..1....0..1..1..1..0
..0..1..0..1..0....0..0..0..1..1....0..1..0..1..0....0..1..0..1..1
..0..0..0..1..1....0..0..1..1..0....1..0..1..0..0....1..0..0..1..1
..1..0..1..0..0....0..1..0..0..1....0..0..1..1..0....1..1..1..0..0
CROSSREFS
Sequence in context: A280754 A113028 A200195 * A055024 A057411 A157058
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 23 2011
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 13 23:31 EDT 2024. Contains 374290 sequences. (Running on oeis4.)