925189domain: NPropertiesPrimalityPrimeyesAppears in sequencesIccanobirt numbers (11 of 15): a(n) = R(a(n-1) + R(a(n-2)) + R(a(n-3))), where R is the digit reversal function A004086.at n=25A102121Iccanobirt primes (11 of 15): Prime numbers in A102121.at n=4A102161Prime numbersat n=73128