337383121domain: NPropertiesPrimalityPrimeyesAppears in sequencesG.f. A(x) = Sum_{n>=0} A_n(x)^(n+1) where A_{n+1}(x) = A_n( A(x) ) with A_0(x)=x and A(0)=0.at n=11A154757Prime numbersat n=18161422