a(n) = [n/1][n/2][n/3] ...[n/n] / n^(tau(n)/2).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =6a(7) =2a(8) =8a(9) =6a(10) =60a(11) =2a(12) =288a(13) =48a(14) =84a(15) =60a(16) =3840a(17) =48a(18) =15552a(19) =144a(20) =4800a(21) =10080a(22) =221760a(23) =96a(24) =331776a(25) =138240a(26) =224640a(27) =25920a(28) =20321280a(29) =4032