a(n) = A203430(n)/A000178(n) where A000178=(superfactorials).

A203432

a(n) = A203430(n)/A000178(n) where A000178=(superfactorials).

Terms

    a(0) =1a(1) =2a(2) =3a(3) =15a(4) =45a(5) =540a(6) =3402a(7) =96228a(8) =1299078a(9) =85739148a(10) =2507870079a(11) =383704122087

External references