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.

A139396 Decimal expansion of the alternating sum 1/p(1) + 1/(p(2)*p(3)) - 1/(p(4)*p(5)*p(6)) + 1/(p(7)*p(8)*p(9)*p(10)) - ..., where p(n) is the n-th prime.

Table of values

n a(n)
0 5
1 6
2 5
3 6
4 7
5 2
6 2
7 9
8 6
9 8
10 0
11 3
12 0
13 6
14 1
15 8
16 9
17 7
18 7
19 0
20 3
21 8
22 4
23 2
24 4
25 8
26 6
27 9
28 7
29 5
30 1
31 6
32 2
33 7
34 6
35 3
36 2
37 5
38 7
39 2
40 0
41 8
42 6
43 1
44 0
45 7
46 2
47 2
48 8
49 0
50 3
51 2
52 2
53 0
54 6
55 1
56 4
57 4
58 7
59 3
60 9
61 8
62 5
63 8
64 5
65 5
66 7
67 8
68 8
69 4
70 9
71 4
72 5
73 8
74 3
75 9
76 0
77 5
78 3
79 1
80 9
81 5
82 9
83 2
84 6
85 1
86 0
87 3
88 8
89 0
90 1
91 3
92 1
93 3
94 8
95 5
96 7
97 0
98 8
99 4

List of values

[5, 6, 5, 6, 7, 2, 2, 9, 6, 8, 0, 3, 0, 6, 1, 8, 9, 7, 7, 0, 3, 8, 4, 2, 4, 8, 6, 9, 7, 5, 1, 6, 2, 7, 6, 3, 2, 5, 7, 2, 0, 8, 6, 1, 0, 7, 2, 2, 8, 0, 3, 2, 2, 0, 6, 1, 4, 4, 7, 3, 9, 8, 5, 8, 5, 5, 7, 8, 8, 4, 9, 4, 5, 8, 3, 9, 0, 5, 3, 1, 9, 5, 9, 2, 6, 1, 0, 3, 8, 0, 1, 3, 1, 3, 8, 5, 7, 0, 8, 4]