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A328707
Dirichlet g.f.: Product_{k>=2} (1 + k^(-s)) / (1 - k^(-s)).
1
1, 2, 2, 4, 2, 6, 2, 8, 4, 6, 2, 14, 2, 6, 6, 14, 2, 14, 2, 14, 6, 6, 2, 30, 4, 6, 8, 14, 2, 22, 2, 24, 6, 6, 6, 36, 2, 6, 6, 30, 2, 22, 2, 14, 14, 6, 2, 58, 4, 14, 6, 14, 2, 30, 6, 30, 6, 6, 2, 58, 2, 6, 14, 40, 6, 22, 2, 14, 6, 22, 2, 82, 2, 6, 14, 14, 6, 22, 2, 58
OFFSET
1,2
COMMENTS
Dirichlet convolution of A001055 with A045778.
FORMULA
a(n) = Sum_{d|n} A001055(n/d) * A045778(d).
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Oct 26 2019
STATUS
approved