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.

A019425 Continued fraction for tan(1/2).

Table of values

n a(n)
0 0
1 1
2 1
3 4
4 1
5 8
6 1
7 12
8 1
9 16
10 1
11 20
12 1
13 24
14 1
15 28
16 1
17 32
18 1
19 36
20 1
21 40
22 1
23 44
24 1
25 48
26 1
27 52
28 1
29 56
30 1
31 60
32 1
33 64
34 1
35 68
36 1
37 72
38 1
39 76
40 1
41 80
42 1
43 84
44 1
45 88
46 1
47 92
48 1
49 96
50 1
51 100
52 1
53 104
54 1
55 108
56 1
57 112
58 1
59 116
60 1
61 120
62 1
63 124
64 1
65 128
66 1
67 132
68 1
69 136
70 1
71 140
72 1
73 144
74 1
75 148
76 1
77 152
78 1
79 156
80 1

List of values

[0, 1, 1, 4, 1, 8, 1, 12, 1, 16, 1, 20, 1, 24, 1, 28, 1, 32, 1, 36, 1, 40, 1, 44, 1, 48, 1, 52, 1, 56, 1, 60, 1, 64, 1, 68, 1, 72, 1, 76, 1, 80, 1, 84, 1, 88, 1, 92, 1, 96, 1, 100, 1, 104, 1, 108, 1, 112, 1, 116, 1, 120, 1, 124, 1, 128, 1, 132, 1, 136, 1, 140, 1, 144, 1, 148, 1, 152, 1, 156, 1]