A083007 - cp's OEIS frontend

A083007 a(n) = Sum_{k=0..n-1} 3^kB(k)C(n,k) where B(k) is the k-th Bernoulli number and C(n,k)=binomial(n,k).

n	a(n)
0	0
1	1
2	-2
3	1
4	4
5	-5
6	-26
7	49
8	328
9	-809
10	-6710
11	20317
12	201772
13	-722813
14	-8370194
15	34607305
16	457941136
17	-2145998417
18	-31945440878
19	167317266613
20	2767413231220
21	-16020403322021
22	-291473080313162
23	1848020950359841
24	36679231132772824
25	-252778977216700025
26	-5435210060467425446

[0, 1, -2, 1, 4, -5, -26, 49, 328, -809, -6710, 20317, 201772, -722813, -8370194, 34607305, 457941136, -2145998417, -31945440878, 167317266613, 2767413231220, -16020403322021, -291473080313162, 1848020950359841, 36679231132772824, -252778977216700025, -5435210060467425446]

cp's OEIS Frontend

A083007 a(n) = Sum_{k=0..n-1} 3^kB(k)C(n,k) where B(k) is the k-th Bernoulli number and C(n,k)=binomial(n,k).

Table of values

List of values

cp's OEIS Frontend

A083007 a(n) = Sum_{k=0..n-1} 3^k*B(k)*C(n,k) where B(k) is the k-th Bernoulli number and C(n,k)=binomial(n,k).

Table of values

List of values

A083007 a(n) = Sum_{k=0..n-1} 3^kB(k)C(n,k) where B(k) is the k-th Bernoulli number and C(n,k)=binomial(n,k).