A217901 - cp's OEIS frontend

A217901 O.g.f.: Sum_{n>=0} 2n^n (n+2)^(n-1) * exp(-n(n+2)x) * x^n / n!.

n	a(n)
0	1
1	2
2	10
3	106
4	1736
5	38414
6	1073178
7	36281032
8	1441336688
9	65849949118
10	3403003693310
11	196336487214234
12	12513043615743360
13	873250527590532680
14	66241197525447027832
15	5427563864923583687376
16	477771405475710621697632
17	44970647131664087237328798
18	4507506792104658670610331462

[1, 2, 10, 106, 1736, 38414, 1073178, 36281032, 1441336688, 65849949118, 3403003693310, 196336487214234, 12513043615743360, 873250527590532680, 66241197525447027832, 5427563864923583687376, 477771405475710621697632, 44970647131664087237328798, 4507506792104658670610331462]

cp's OEIS Frontend

A217901 O.g.f.: Sum_{n>=0} 2n^n (n+2)^(n-1) * exp(-n(n+2)x) * x^n / n!.

Table of values

List of values

cp's OEIS Frontend

A217901 O.g.f.: Sum_{n>=0} 2*n^n * (n+2)^(n-1) * exp(-n*(n+2)*x) * x^n / n!.

Table of values

List of values

A217901 O.g.f.: Sum_{n>=0} 2n^n (n+2)^(n-1) * exp(-n(n+2)x) * x^n / n!.