Denominators of partial sums of (p+q)/p*q, where p and q are primes.

Terms

a(0) =1a(1) =6a(2) =2a(3) =5a(4) =70a(5) =210a(6) =210a(7) =1155a(8) =1155a(9) =30030a(10) =10010a(11) =85085a(12) =17017a(13) =646646a(14) =1939938a(15) =22309287a(16) =22309287a(17) =22309287a(18) =111546435a(19) =37182145a(20) =2156564410a(21) =33426748355a(22) =33426748355a(23) =100280245065