58764domain: NAppears in sequencesNumber of n-digit base-3 deletable primes.at n=18A096236Integer part of n#/((p-11)# 11#), where p=preceding prime to n.at n=29A102789Numbers n such that 30n-13, 30n-11, 30n-1, 30n+1, 30n+11, 30n+13 are all prime.at n=22A175683