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!)
A172795 Number of 7*n X n 0..3 arrays with row sums 3 and column sums 21. 1
1, 25288120, 8590448906009178865, 2089345627982707177699421140008960, 77513216887442246128882408582036570535556173496000, 168135704190434138519823546360671865844450109820045620452225487496000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

R. H. Hardin, Table of n, a(n) for n=1..10

CROSSREFS

Sequence in context: A187439 A175580 A204778 * A056915 A233448 A112130

Adjacent sequences:  A172792 A172793 A172794 * A172796 A172797 A172798

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 June 26 16:55 EDT 2022. Contains 354885 sequences. (Running on oeis4.)