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!)
A172718 Number of 9*n X n 0..2 arrays with row sums 2 and column sums 18 1
1, 44152809, 12331175198408791725, 1237527402223677679598899948925700, 10500268455366221173591541192738752806765261187500, 3138480844349933121860864061245246387668619696538799391771830312500 (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: A017636 A139029 A206326 * A270611 A049360 A130913

Adjacent sequences:  A172715 A172716 A172717 * A172719 A172720 A172721

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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 28 12:29 EST 2022. Contains 350656 sequences. (Running on oeis4.)