1723960domain: NAppears in sequencesa(n) = [x^n] (1/15! * Sum_{k=0..n} (k+15)!*x^k)^(1/8).at n=6A303616Let P1>=5, P2, P3 be consecutive primes, with P2-P1=2. a(n)=(P1+P2)/12 when P3-P2 sets a record.at n=21A329160