A308538 - cp's OEIS frontend

A308538 a(n) = exp(1) * Sum_{k>=0} (-1)^k(k(k + 1))^n/k!.

n	a(n)
0	1
1	-1
2	3
3	-11
4	-47
5	2111
6	-18589
7	-671803
8	24578625
9	328227551
10	-44122149981
11	-17436709707
12	129678315723089
13	-1671362093527073
14	-621466693739336509
15	16245508786340273349
16	4705502566521408713473
17	-172007688705762528111809
18	-54084940569279187064459581

[1, -1, 3, -11, -47, 2111, -18589, -671803, 24578625, 328227551, -44122149981, -17436709707, 129678315723089, -1671362093527073, -621466693739336509, 16245508786340273349, 4705502566521408713473, -172007688705762528111809, -54084940569279187064459581]

cp's OEIS Frontend

A308538 a(n) = exp(1) * Sum_{k>=0} (-1)^k(k(k + 1))^n/k!.

Table of values

List of values

cp's OEIS Frontend

A308538 a(n) = exp(1) * Sum_{k>=0} (-1)^k*(k*(k + 1))^n/k!.

Table of values

List of values

A308538 a(n) = exp(1) * Sum_{k>=0} (-1)^k(k(k + 1))^n/k!.