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%I #4 Dec 18 2021 15:07:40
%S 1,3,3,3,3,12,3,12,3,12,3,21,3,12,12,12,3,21,3,21,12,12,3,57,3,12,12,
%T 21,3,57,3,21,12,12,12,57,3,12,12,57,3,57,3,21,21,12,3,93,3,21,12,21,
%U 3,57,12,57,12,12,3,129,3,12,21,48,12,57,3,21,12,57
%N Dirichlet g.f.: Product_{k>=2} (1 + 3 * k^(-s)).
%Y Cf. A032308, A045778, A339335, A347149, A349923.
%K nonn
%O 1,2
%A _Ilya Gutkovskiy_, Dec 05 2021