141041domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes having only {0, 1, 4} as digits.at n=30A260266Expansion of 1 / (1 + Sum_{k>=1} phi(k) * log(1 - 2 * x^k) / k), where phi = A000010.at n=10A329274Prime numbersat n=13099