A022894 - cp's OEIS frontend

A022894 Number of solutions to c(1)prime(1) +...+ c(2n+1)prime(2n+1) = 0, where c(i) = +-1 for i > 1, c(1) = 1.

n	a(n)
0	0
1	1
2	1
3	2
4	5
5	13
6	39
7	122
8	392
9	1286
10	4341
11	14860
12	51085
13	178402
14	634511
15	2260918
16	8067237
17	29031202
18	105250449
19	383579285
20	1404666447
21	5171065198
22	19141008044
23	71124987313
24	263548339462
25	983424096451
26	3684422350470
27	13818161525284
28	51938115653565

[0, 1, 1, 2, 5, 13, 39, 122, 392, 1286, 4341, 14860, 51085, 178402, 634511, 2260918, 8067237, 29031202, 105250449, 383579285, 1404666447, 5171065198, 19141008044, 71124987313, 263548339462, 983424096451, 3684422350470, 13818161525284, 51938115653565]

cp's OEIS Frontend

A022894 Number of solutions to c(1)prime(1) +...+ c(2n+1)prime(2n+1) = 0, where c(i) = +-1 for i > 1, c(1) = 1.

Table of values

List of values

cp's OEIS Frontend

A022894 Number of solutions to c(1)*prime(1) +...+ c(2n+1)*prime(2n+1) = 0, where c(i) = +-1 for i > 1, c(1) = 1.

Table of values

List of values

A022894 Number of solutions to c(1)prime(1) +...+ c(2n+1)prime(2n+1) = 0, where c(i) = +-1 for i > 1, c(1) = 1.