770281domain: NPropertiesPrimalityPrimeyesAppears in sequencesp-INVERT of (1,0,0,1,0,0,1,0,0,...), where p(S) = 1 - S^2 - S^3.at n=28A292321Expansion of e.g.f. f(x) * exp(2 * f(x)), where f(x) = (exp(3*x) - 1)/3.at n=7A383261Prime numbersat n=61757