874800domain: NAppears in sequencesDirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(k^5).at n=11A343285a(n) = Product_{k=1..n} (p(k+1) + p(k))/(p(k+1) - p(k)), where p(k) = prime(k).at n=7A352743