1902671domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = 2^n-n^4.at n=21A024014Primes of the form 2^n - n^4.at n=0A182360a(n) = 2^n - n^k, where k is the largest integer such that 2^n >= n^k.at n=19A215892Prime numbersat n=142210