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!)
A145246 1/6 of the number of 6-colorings of an n X n array symmetric about main diagonal. 0
1, 25, 2625, 1157625, 2144197125, 16680941258625, 545049010783958625, 74801401778343775334625, 43116460181763524110077949125, 104384410248808682805556599342377625 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Sequence in context: A324417 A167036 A342107 * A082488 A209850 A014797

Adjacent sequences:  A145243 A145244 A145245 * A145247 A145248 A145249

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 05 2008

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 19 23:47 EST 2022. Contains 350467 sequences. (Running on oeis4.)