201797domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that 24*p-1, 24*p+1 and 30*p-1, 30*p+1 are twin primes.at n=17A138695Positive integers k such that k^2 = A^2+B^2+C^2 and A^3+B^3+C^3 = m^3, where gcd(A,B,C) = 1 and A, B, C, m are positive integers.at n=10A337251Prime numbersat n=18127