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A087420 a(n) is the sum of the squares of the sizes of the conjugacy classes in the dihedral group D_2n. 0
2, 4, 14, 14, 34, 28, 62, 46, 98, 68, 142, 94 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A131758 A095909 A151872 * A194388 A141654 A173338

Adjacent sequences:  A087417 A087418 A087419 * A087421 A087422 A087423

KEYWORD

nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Oct 22 2003

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Last modified February 16 05:32 EST 2012. Contains 205860 sequences.