80107domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes where the first digit equals the sum of all the other digits.at n=52A156307Primes of the form p^2 + 18, where p is prime.at n=29A201688E.g.f. satisfies A(x) = exp( x * (1+x) * A(x) ).at n=6A362771Prime numbersat n=7843