A328853 Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(k - 1).

1, 1, 2, 4, 4, 7, 6, 11, 11, 13, 10, 24, 12, 19, 22, 32, 16, 38, 18, 44, 32, 31, 22, 76, 34, 37, 46, 64, 28, 89, 30, 84, 52, 49, 58, 143, 36, 55, 62, 138, 40, 129, 42, 104, 116, 67, 46, 233, 69, 119, 82, 124, 52, 188, 94, 200, 92, 85, 58, 341, 60, 91, 168, 230

Offset: 1

Author

Ilya Gutkovskiy, Oct 28 2019

Keywords

• nonn

Comments

Dirichlet convolution of A050367 with A114592.

Crossrefs

Cf. A001055, A050367, A114592, A328851.

Formula

a(n) = Sum_{d|n} A050367(n/d) * A114592(d).