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a(n) = n * Clausen(n, 1) / Clausen(n, 0).
2

%I #4 Jun 08 2023 08:50:37

%S 0,2,6,2,60,2,42,2,120,6,66,2,5460,2,6,2,4080,2,2394,2,660,2,138,2,

%T 10920,10,6,18,1740,2,14322,2,8160,2,6,2,11515140,2,6,2,54120,2,1806,

%U 2,1380,6,282,2,371280,14,330,2,3180,2,7182,2,3480,2,354,2,113573460

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

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

%p # Using function 'Clausen' from A160014.

%p a := n -> n * Clausen(n, 1) / Clausen(n, 0):

%p seq(a(n), n = 0..60);

%Y Cf. A160014, A363402, A363403.

%K nonn

%O 0,2

%A _Peter Luschny_, Jun 08 2023