173059286401domain: NAppears in sequencesSmallest prime of the form n*(n+1)*(n+2)...(n+k) + 1, k > 0, i.e., a(n) > n+1, or 0 if no such prime exists.at n=21A089305Smallest prime of the form n(n-1)(n-2)...(n-k)+1, or 0 if no such prime exists.at n=28A092927