85835domain: NAppears in sequencesLeast positive integer m > 1 such that 1 - m^k + m^(2k) - m^(3k) + m^(4k) is prime, where k = A003592(n).at n=43A181980Numbers k such that k+x+y is a perfect cube, where x and y are the two cubes nearest to k.at n=21A238599