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A001877 Number of divisors of n of form 5k+2. 1
0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 2, 0, 2, 0, 1, 1, 1, 0, 1, 1, 2, 0, 2, 0, 1, 1, 2, 0, 1, 0, 2, 0, 2, 1, 2, 1, 1, 0, 1, 0, 3, 0, 2, 0, 1, 1, 2, 1, 1, 1, 2, 0, 2, 0, 2, 1, 1, 0, 2, 0, 2, 1, 2, 0, 2, 1, 2, 0, 2, 0, 3, 0, 2, 0, 1, 2, 1, 0, 1, 1, 2, 0, 4, 1, 1, 1, 2, 0, 1, 1, 2, 0, 2, 0, 3, 1, 2 (list; graph; refs; listen; history; internal format)
OFFSET

0,13

FORMULA

G.f.: Sum x^(5n+2)/(1-x^(5n+2)), n=0..inf.

G.f.: sum(n>=1, x^(2*n)/(1-x^(5*n))) - Joerg Arndt, Jan 30 2011

CROSSREFS

Sequence in context: A035446 A126211 A095414 * A112712 A026608 A026612

Adjacent sequences:  A001874 A001875 A001876 * A001878 A001879 A001880

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 03:30 EST 2012. Contains 205978 sequences.