355297domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 16*m^2 + 81, m=1,2,3,...at n=23A087861E.g.f.: A(x) = exp(x*exp(x*exp(2*x*exp(3*x*exp(...exp(n*x*exp(...))...))))).at n=6A189897Prime numbersat n=30399