321031domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes whose digits add to 10 and which have a 3 in the tens place.at n=37A227825Number of ways to tile an n X n X n triangular area with three 2 X 2 X 2 triangular tiles and an appropriate number (= n^2-12) of 1 X 1 X 1 tiles.at n=10A286438Prime numbersat n=27690