a(n) = Product_{d|n} (A253139(n) / tau(d)) where A253139(n) = lcm_{d|n} tau(d).

Terms

a(0) =1a(1) =2a(2) =2a(3) =36a(4) =2a(5) =16a(6) =2a(7) =864a(8) =36a(9) =16a(10) =2a(11) =10368a(12) =2a(13) =16a(14) =16a(15) =6480000a(16) =2a(17) =10368a(18) =2a(19) =10368a(20) =16a(21) =16a(22) =2a(23) =11943936a(24) =36a(25) =16a(26) =864a(27) =10368a(28) =2a(29) =4096