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.

A247669 Decimal expansion of A_3 = Sum_{n >= 1} H(n)^2/((2n-1)*(2n)*(2n+1))^3, where H(n) is the n-th harmonic number.

Table of values

n a(n)
0 0
1 0
2 4
3 6
4 4
5 0
6 4
7 5
8 0
9 2
10 0
11 3
12 5
13 7
14 8
15 1
16 2
17 3
18 9
19 8
20 9
21 1
22 8
23 0
24 5
25 2
26 9
27 2
28 3
29 6
30 2
31 3
32 4
33 5
34 4
35 6
36 7
37 2
38 5
39 2
40 6
41 9
42 3
43 9
44 0
45 7
46 8
47 3
48 2
49 0
50 2
51 7
52 3
53 9
54 2
55 3
56 0
57 0
58 4
59 9
60 2
61 4
62 9
63 0
64 7
65 2
66 3
67 4
68 4
69 9
70 7
71 1
72 8
73 3
74 2
75 4
76 1
77 2
78 5
79 7
80 3
81 5
82 3
83 7
84 4
85 0
86 5
87 9
88 7
89 0
90 3
91 7
92 2
93 2
94 8
95 3
96 4
97 3
98 8
99 7
100 8
101 1
102 0
103 5

List of values

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