86618domain: NAppears in sequencesa(n) = sum(k=0,n,B_k*A000629(k)*A000629(n-k)) where B_k is the k-th Bernoulli number.at n=7A111154Squarefree numbers n such that n is divisible by the product of digits of prime(n).at n=14A273402Expansion of Product_{k>=1} 1/(1 - x^prime(k))^2.at n=50A298436