The OEIS mourns the passing of
Jim Simons
and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A172914
Number of 3*n X n 0..6 arrays with row sums 6 and column sums 18
1
1, 9331, 69327885583, 69404300198350892236, 3373513537183933018216388397350, 4081159676302022080974044453167358453805921, 76587973156243192496223417009664279130517333252040973460
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
1,2
LINKS
R. H. Hardin,
Table of n, a(n) for n=1..11
CROSSREFS
Sequence in context:
A241935
A229435
A022223
*
A209792
A004934
A004954
Adjacent sequences:
A172911
A172912
A172913
*
A172915
A172916
A172917
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 7 18:53 EDT 2024. Contains 373206 sequences. (Running on oeis4.)