Imaginary part of A000178(n) * Sum_{k=0..n} i^k/k!, where i = sqrt(-1).
A282567
Imaginary part of A000178(n) * Sum_{k=0..n} i^k/k!, where i = sqrt(-1).
Terms
- a(0) =0a(1) =1a(2) =2a(3) =10a(4) =240a(5) =29088a(6) =20943360a(7) =105529651200
External references
- oeis: A282567