A363395 a(n) = n * Clausen(n, 1) / Clausen(n, 0).

0, 2, 6, 2, 60, 2, 42, 2, 120, 6, 66, 2, 5460, 2, 6, 2, 4080, 2, 2394, 2, 660, 2, 138, 2, 10920, 10, 6, 18, 1740, 2, 14322, 2, 8160, 2, 6, 2, 11515140, 2, 6, 2, 54120, 2, 1806, 2, 1380, 6, 282, 2, 371280, 14, 330, 2, 3180, 2, 7182, 2, 3480, 2, 354, 2, 113573460

Offset: 0

Author

Peter Luschny, Jun 08 2023

Keywords

• nonn

Crossrefs

Cf. A160014, A363402, A363403.

Programs

Maple

# Using function 'Clausen' from A160014.
a := n -> n * Clausen(n, 1) / Clausen(n, 0):
seq(a(n), n = 0..60);

Formula

a(n) = n * A160014(n, 1) / A160014(n, 0).