A320962 - cp's OEIS frontend

A320962 a(n) = (-1)^(n-1)(n-1)!Sum_{i=0..n} Stirling2(n, i) if n > 0 and 0 otherwise.

n	a(n)
0	0
1	1
2	-2
3	10
4	-90
5	1248
6	-24360
7	631440
8	-20865600
9	852647040
10	-42085008000
11	2462394816000
12	-168193308729600
13	13241729554099200
14	-1188734048799897600
15	120563962753538304000
16	-13704613258628388096000
17	1733764260005567741952000
18	-242606144946628642443264000

[0, 1, -2, 10, -90, 1248, -24360, 631440, -20865600, 852647040, -42085008000, 2462394816000, -168193308729600, 13241729554099200, -1188734048799897600, 120563962753538304000, -13704613258628388096000, 1733764260005567741952000, -242606144946628642443264000]

cp's OEIS Frontend

A320962 a(n) = (-1)^(n-1)(n-1)!Sum_{i=0..n} Stirling2(n, i) if n > 0 and 0 otherwise.

Table of values

List of values

cp's OEIS Frontend

A320962 a(n) = (-1)^(n-1)*(n-1)!*Sum_{i=0..n} Stirling2(n, i) if n > 0 and 0 otherwise.

Table of values

List of values

A320962 a(n) = (-1)^(n-1)(n-1)!Sum_{i=0..n} Stirling2(n, i) if n > 0 and 0 otherwise.