Product of numbers m with 2 <= m <= n whose prime divisors all divide n.

Terms

a(0) =1a(1) =2a(2) =3a(3) =8a(4) =5a(5) =144a(6) =7a(7) =64a(8) =27a(9) =3200a(10) =11a(11) =124416a(12) =13a(13) =6272a(14) =2025a(15) =1024a(16) =17a(17) =35831808a(18) =19a(19) =1024000a(20) =3969a(21) =247808a(22) =23a(23) =859963392a(24) =125a(25) =346112a(26) =729a(27) =2809856a(28) =29a(30) =31