cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A022897 Number of solutions to c(1)*prime(2) +...+ c(n)*prime(n+1) = 0, where c(i) = +-1 for i > 1, c(1) = 1.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 0
6 1
7 0
8 2
9 0
10 7
11 0
12 19
13 0
14 63
15 0
16 197
17 0
18 645
19 0
20 2172
21 0
22 7423
23 0
24 25534
25 0
26 89218
27 0
28 317284
29 0
30 1130526
31 0
32 4033648
33 0
34 14515742
35 0
36 52625952
37 0
38 191790090
39 0
40 702333340
41 0
42 2585539586
43 0
44 9570549372
45 0
46 35562602950
47 0
48 131774529663
49 0

List of values

[0, 0, 0, 0, 0, 1, 0, 2, 0, 7, 0, 19, 0, 63, 0, 197, 0, 645, 0, 2172, 0, 7423, 0, 25534, 0, 89218, 0, 317284, 0, 1130526, 0, 4033648, 0, 14515742, 0, 52625952, 0, 191790090, 0, 702333340, 0, 2585539586, 0, 9570549372, 0, 35562602950, 0, 131774529663, 0]