12726051979domain: NAppears in sequencesIccanobirt numbers (2 of 15): a(n) = a(n-1) + R(a(n-2)) + a(n-3), where R is the digit reversal function A004086.at n=32A102112Iccanobirt semiprimes (2 of 15): Semiprime numbers in A102112.at n=5A102192