92725334137domain: NAppears in sequencesIccanobirt numbers (8 of 15): a(n) = R(a(n-1) + a(n-2) + a(n-3)), where R is the digit reversal function A004086.at n=31A102118Iccanobirt semiprimes (8 of 15): Semiprime numbers in A102118.at n=8A102198