Imaginary part of n!*Sum_{k=1..n} i^(k-1)/k, where i is sqrt(-1).
A282132
Imaginary part of n!*Sum_{k=1..n} i^(k-1)/k, where i is sqrt(-1).
Terms
- a(0) =0a(1) =1a(2) =3a(3) =6a(4) =30a(5) =300a(6) =2100a(7) =11760a(8) =105840a(9) =1421280a(10) =15634080a(11) =147692160a(12) =1919998080a(13) =33106993920a(14) =496604908800
External references
- oeis: A282132