A124311 - cp's OEIS frontend

A124311 a(n) = Sum_{i=0..n} (-2)^ibinomial(n,i)B(i) where B(n) = Bell numbers A000110(n).

n	a(n)
0	1
1	-1
2	5
3	-21
4	121
5	-793
6	5917
7	-49101
8	447153
9	-4421105
10	47062773
11	-535732805
12	6484924585
13	-83079996041
14	1121947980173
15	-15915567647101
16	236442490569825
17	-3668776058118881
18	59316847871113445
19	-997182232031471477
20	17397298225094055897
21	-314449131128077197561

[1, -1, 5, -21, 121, -793, 5917, -49101, 447153, -4421105, 47062773, -535732805, 6484924585, -83079996041, 1121947980173, -15915567647101, 236442490569825, -3668776058118881, 59316847871113445, -997182232031471477, 17397298225094055897, -314449131128077197561]

cp's OEIS Frontend

A124311 a(n) = Sum_{i=0..n} (-2)^ibinomial(n,i)B(i) where B(n) = Bell numbers A000110(n).

Table of values

List of values

cp's OEIS Frontend

A124311 a(n) = Sum_{i=0..n} (-2)^i*binomial(n,i)*B(i) where B(n) = Bell numbers A000110(n).

Table of values

List of values

A124311 a(n) = Sum_{i=0..n} (-2)^ibinomial(n,i)B(i) where B(n) = Bell numbers A000110(n).