Duplicate of A027466.

Terms

a(0) =1a(1) =7a(2) =1a(3) =49a(4) =14a(5) =1a(6) =343a(7) =147a(8) =21a(9) =1a(10) =2401a(11) =1372a(12) =294a(13) =28a(14) =1a(15) =16807a(16) =12005a(17) =3430