2036161domain: NPropertiesPrimalityPrimeyesAppears in sequencesE.g.f.: A(x) = (exp(x)/(4 - 3*exp(x)))^(1/4).at n=7A136728Primes of the form 648*k^2 + 72*k + 1.at n=21A154510a(n) = 10368*n^2 + 288*n + 1.at n=13A157326Prime numbersat n=151454