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.

A247670 Decimal expansion of Sum_{n >= 0} (-1)^n*H(n)/(2n+1)^3, where H(n) is the n-th harmonic number.

Table of values

n a(n)
0 0
1 2
2 8
3 5
4 7
5 4
6 1
7 7
8 0
9 6
10 3
11 6
12 2
13 4
14 3
15 5
16 9
17 0
18 9
19 9
20 9
21 0
22 8
23 4
24 2
25 9
26 5
27 1
28 2
29 5
30 0
31 4
32 4
33 3
34 1
35 0
36 8
37 8
38 6
39 0
40 3
41 0
42 1
43 8
44 6
45 9
46 1
47 4
48 8
49 6
50 0
51 1
52 6
53 0
54 9
55 1
56 3
57 3
58 1
59 9
60 3
61 5
62 0
63 9
64 8
65 8
66 4
67 9
68 8
69 4
70 2
71 4
72 1
73 7
74 2
75 1
76 7
77 2
78 9
79 5
80 1
81 6
82 9
83 9
84 9
85 7
86 3
87 8
88 0
89 5
90 8
91 8
92 2
93 1
94 2
95 4
96 9
97 0
98 1
99 2
100 4
101 1

List of values

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