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!)
A172646 Number of 2*n X n 0..2 arrays with row sums 10 and column sums 20 1
0, 0, 0, 0, 1, 3536978063850, 134169254007831527780970675, 19578536057961112914067888563728861113920, 13935136089336578003371937448487249553674496163189003360 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,6
LINKS
CROSSREFS
Sequence in context: A080123 A209834 A230485 * A222558 A290504 A172630
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2010
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 March 19 01:57 EDT 2024. Contains 370952 sequences. (Running on oeis4.)