a(n) = A276086(A283477(n)).

Terms

a(0) =2a(1) =3a(2) =5a(3) =25a(4) =7a(5) =49a(6) =117649a(7) =184877a(8) =11a(9) =121a(10) =1771561a(11) =143a(12) =36226650889a(13) =59797108943a(14) =546826709a(16) =13a(17) =169a(18) =4826809a(20) =8254129