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A145244
1/5 of the number of 5-colorings of an n X n array symmetric about both diagonal and antidiagonal.
0
1, 4, 64, 832, 43264, 1827904, 308948224, 42427198528, 23308417310464, 10404188730539968, 18578639958381807616, 26955458921407543923136, 156455150623383016555451392
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..13.
CROSSREFS
Sequence in context: A264567 A264575 A053957 * A268165 A026301 A010042
Adjacent sequences: A145241 A145242 A145243 * A145245 A145246 A145247
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 05 2008
STATUS
approved

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Last modified November 16 10:34 EST 2024. Contains 377791 sequences.
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