87721domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that the largest prime divisor of p^4+1 is less than p.at n=15A102326Write sin(x)/x = Product_{n>=1} (1 + g_n*x^(2*n)); a(n) = numerator(g_n).at n=8A170916Primes of the form 3*m^2 - 2.at n=26A201715Prime numbersat n=8520