970201domain: NPropertiesPrimalityPrimeyesAppears in sequencesLeast inverse of A001390, or 0 if no inverse exists.at n=39A020638Primes of the form k^3 - k + 1.at n=32A100698Primes p such that p = 1 + 27720*k for some k.at n=10A217692a(n) = 1 - 5*(n + 1)^2 + 5*(n + 1)^4.at n=20A385897Prime numbersat n=76363