6221191

Properties

Appears in sequences

• a(1)=3, b(n) = Product_{k=1..n} a(k), a(n+1) is the largest prime factor of (b(n)-1).at n=7A005266
• a(1) = 2, a(2) = 3; for n >= 2, a(n+1) is largest prime factor of (Product_{k=1..n} a(k)) - 1.at n=7A084599
• Prime numbersat n=426981