This number is a prime.
2+3+5+11+31+127+709+5381 = 6269 (prime). Starting with 2, each term a(n) is the prime p(a(n-1)). [Gallardo]
2+3+5+11+31+127+709+5381 = 6269 (prime). Starting with 2, each term a(n) is the prime p(a(n-1)). [Gallardo]