A085646 - OEIS

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A085646

Sum of the entries in the character table of the group GL(2,Z_n).

1

1, 5, 24, 52, 120, 120, 336, 496, 654, 600, 1320, 1248, 2184, 1680, 2880

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..15.

FORMULA

For an odd prime p : a(p) = p*(p^2-1).

CROSSREFS

Cf. A000252, A062354, A053191.

Sequence in context: A219509 A372455 A202326 * A121546 A135703 A258290

Adjacent sequences: A085643 A085644 A085645 * A085647 A085648 A085649

KEYWORD

mult,nonn,more

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Jul 11 2003

STATUS

approved