1212521domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes such that the sum of the squares of its digits is equal to the product of its digits.at n=13A067779a(1)=2, a(2)=3, a(3)=5; a(n) = largest prime < a(n-1)+a(n-2)+a(n-3).at n=23A126092a(n) = number of n-digit numbers not divisible by any of their digits.at n=6A147963Prime numbersat n=93804