Numbers k such that product of divisors of k ends with k and k is nonprime (A018252).

Terms

a(0) =1a(1) =6a(2) =25a(3) =75a(4) =76a(5) =96a(6) =99a(7) =376a(8) =625a(9) =1376a(10) =1875a(11) =3568a(12) =3751a(13) =4375a(14) =6875a(15) =8001a(16) =8125a(17) =9376a(18) =13568a(19) =28125a(20) =49376a(21) =68751a(22) =89376a(23) =90625a(24) =109375a(25) =109376a(26) =499999a(27) =800001a(28) =890624a(29) =890625