A337038 - cp's OEIS frontend

A337038 a(n) = exp(-1/2) * Sum_{k>=0} (2k - 1)^n / (2^k k!).

n	a(n)
0	1
1	0
2	2
3	4
4	20
5	96
6	552
7	3536
8	25104
9	194816
10	1637408
11	14792768
12	142761280
13	1464117760
14	15886137984
15	181667507456
16	2182268117248
17	27456279388160
18	360872502280704
19	4943580063237120
20	70437638474568704
21	1041911242274562048
22	15972832382065977344
23	253388070573020401664

[1, 0, 2, 4, 20, 96, 552, 3536, 25104, 194816, 1637408, 14792768, 142761280, 1464117760, 15886137984, 181667507456, 2182268117248, 27456279388160, 360872502280704, 4943580063237120, 70437638474568704, 1041911242274562048, 15972832382065977344, 253388070573020401664]

cp's OEIS Frontend

A337038 a(n) = exp(-1/2) * Sum_{k>=0} (2k - 1)^n / (2^k k!).

Table of values

List of values

cp's OEIS Frontend

A337038 a(n) = exp(-1/2) * Sum_{k>=0} (2*k - 1)^n / (2^k * k!).

Table of values

List of values

A337038 a(n) = exp(-1/2) * Sum_{k>=0} (2k - 1)^n / (2^k k!).