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!)
A172771 Number of 3*n X 2*n 0..3 arrays with row sums 4 and column sums 6 1
7, 4705381, 654393258290520, 3956256528501607375052700, 432897335001181060850579402825662500, 493319321787145287396560260323437116718848470000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..16

CROSSREFS

Sequence in context: A076915 A051447 A076910 * A116257 A075984 A109300

Adjacent sequences:  A172768 A172769 A172770 * A172772 A172773 A172774

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 October 5 10:54 EDT 2022. Contains 357255 sequences. (Running on oeis4.)