a(n) = n! * H_n(n) where H_0(n) = 1/n, H_m(n) = Sum_{k=1..n} H_{m-1}(k).
A058806
a(n) = n! * H_n(n) where H_0(n) = 1/n, H_m(n) = Sum_{k=1..n} H_{m-1}(k).
Terms
- a(0) =1a(1) =5a(2) =47a(3) =638a(4) =11274a(5) =245004a(6) =6314664a(7) =188204400a(8) =6366517200a(9) =240947474400
External references
- oeis: A058806