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Search: id:A145245
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A145245 1/5 of the number of 5-colorings of an n X n array symmetric under 180 degree rotation. +0
1
1, 4, 172, 7168, 3254620, 1429959400, 6856279647904, 31816048080263248, 1611557504007762068188 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A017414 A051476 A057140 this_sequence A081783 A006433 A113254

Adjacent sequences: A145242 A145243 A145244 this_sequence A145246 A145247 A145248

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net), Oct 05 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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