A261059 - cp's OEIS frontend

A261059 Number of solutions to c(1)prime(2)+...+c(2n)prime(2n+1) = -2, where c(i) = +-1 for i > 1, c(1) = 1.

n	a(n)
1	1
2	0
3	2
4	1
5	4
6	25
7	47
8	237
9	562
10	1965
11	7960
12	24148
13	85579
14	307569
15	1104519
16	4106381
17	14710760
18	52113647
19	193181449
20	698356631
21	2574590311
22	9600573372
23	35644252223
24	131545038705
25	492346772797
26	1843993274342
27	6903884199622
28	25984680496124
29	97937400336407

[1, 0, 2, 1, 4, 25, 47, 237, 562, 1965, 7960, 24148, 85579, 307569, 1104519, 4106381, 14710760, 52113647, 193181449, 698356631, 2574590311, 9600573372, 35644252223, 131545038705, 492346772797, 1843993274342, 6903884199622, 25984680496124, 97937400336407]

cp's OEIS Frontend

A261059 Number of solutions to c(1)prime(2)+...+c(2n)prime(2n+1) = -2, where c(i) = +-1 for i > 1, c(1) = 1.

Table of values

List of values

cp's OEIS Frontend

A261059 Number of solutions to c(1)*prime(2)+...+c(2n)*prime(2n+1) = -2, where c(i) = +-1 for i > 1, c(1) = 1.

Table of values

List of values

A261059 Number of solutions to c(1)prime(2)+...+c(2n)prime(2n+1) = -2, where c(i) = +-1 for i > 1, c(1) = 1.