a(n) = Product_{p prime} p^{ Sum_{k>=0} floor[(n-1)/((p-1)p^k)]}.
A053657
a(n) = Product_{p prime} p^{ Sum_{k>=0} floor[(n-1)/((p-1)p^k)]}.
Terms
- a(0) =1a(1) =2a(2) =24a(3) =48a(4) =5760a(5) =11520a(6) =2903040a(7) =5806080a(8) =1393459200a(9) =2786918400a(10) =367873228800a(11) =735746457600
External references
- oeis: A053657