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.

A216548 Decimal expansion of 4*Sum_{k=1..5000000} (-1)^(k-1)/(2k-1).

Table of values

n a(n)
1 3
2 1
3 4
4 1
5 5
6 9
7 2
8 4
9 5
10 3
11 5
12 8
13 9
14 7
15 9
16 3
17 2
18 3
19 8
20 4
21 6
22 4
23 6
24 4
25 3
26 3
27 8
28 3
29 2
30 7
31 9
32 5
33 0
34 2
35 7
36 8
37 4
38 1
39 9
40 7
41 1
42 6
43 9
44 3
45 9
46 9
47 3
48 8
49 7
50 3
51 0
52 5
53 8
54 2
55 0
56 9
57 7
58 4
59 9
60 4
61 1
62 8
63 2
64 2
65 3
66 0
67 7
68 8
69 1
70 6
71 4
72 0
73 7
74 2
75 9
76 6
77 6
78 2
79 8
80 9
81 9
82 8
83 6
84 2
85 7
86 4
87 9
88 4
89 2
90 7
91 2
92 3
93 4
94 2
95 1
96 1
97 7
98 4
99 6
100 6
101 7
102 0
103 4
104 1
105 1
106 0
107 0
108 8
109 6
110 1
111 2
112 5
113 4
114 5
115 2
116 0
117 6
118 3
119 7
120 4
121 7
122 5
123 7
124 4
125 8

List of values

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