2000807

Properties

Appears in sequences

• a(0) = 7; for n > 0, a(n) is the greatest prime factor of PP(PP(a(n-1)))*a(n-1)+2 where PP(n) is an abbreviation for PreviousPrime(n).at n=6A082021
• Numbers that don't have a 1 and yet have one.at n=16A359534
• Prime numbersat n=148991