a(n) = exp(-1/2) * Sum_{k>=0} (2*k - 1)^n / (2^k * k!).
A337038
a(n) = exp(-1/2) * Sum_{k>=0} (2*k - 1)^n / (2^k * k!).
Terms
- a(0) =1a(1) =0a(2) =2a(3) =4a(4) =20a(5) =96a(6) =552a(7) =3536a(8) =25104a(9) =194816a(10) =1637408a(11) =14792768a(12) =142761280a(13) =1464117760a(14) =15886137984a(15) =181667507456
External references
- oeis: A337038