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.

A233090 Decimal expansion of Sum_{n>=1} (-1)^(n-1)*H(n)/n^2, where H(n) is the n-th harmonic number.

Table of values

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

List of values

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