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A078182 Sum_{d|n, d=2 mod 3} d. +0
6
0, 2, 0, 2, 5, 2, 0, 10, 0, 7, 11, 2, 0, 16, 5, 10, 17, 2, 0, 27, 0, 13, 23, 10, 5, 28, 0, 16, 29, 7, 0, 42, 11, 19, 40, 2, 0, 40, 0, 35, 41, 16, 0, 57, 5, 25, 47, 10, 0, 57, 17, 28, 53, 2, 16, 80, 0, 31, 59, 27, 0, 64, 0, 42, 70, 13, 0, 87, 23, 56, 71, 10, 0, 76, 5, 40, 88, 28, 0, 115 (list; graph; listen)
OFFSET

1,2

FORMULA

G.f.: Sum_{n>=0} (3*n+2)*x^(3*n+2)/(1-x^(3*n+2)).

CROSSREFS

Cf. A001817, A001822, A078181.

Sequence in context: A158855 A005074 A161564 this_sequence A133394 A094721 A144529

Adjacent sequences: A078179 A078180 A078181 this_sequence A078183 A078184 A078185

KEYWORD

easy,nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 21 2002

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


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