117546246144domain: NAppears in sequencesa(n) = Product{k|n} k^(n/k); product is over the positive divisors of n.at n=17A066841a(n)=Product{k=0..n, 1+2^A010060(k)}/2.at n=28A101652Denominator of Bernoulli(n, -1/6).at n=15A158207