312031domain: NPropertiesPrimalityPrimeyesAppears in sequencesDecimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 3,1,2,0.at n=5A037785Primes whose digits add to 10 and which have a 3 in the tens place.at n=36A227825Primes of the form 398*x^2-1.at n=20A338476Prime numbersat n=26952