491371domain: NPropertiesPrimalityPrimeyesAppears in sequences1 + 12*n + 81*n^3 + n*(105*n + 81*n^3)/2.at n=10A134163Prime numbers P such that Q=24*P^3-1 is prime, R=24*Q^3-1 is prime and S=24*R^3-1 is also prime.at n=3A245681Prime numbersat n=40873