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.

A118830 2-adic continued fraction of zero, where a(n) = -1 if n is odd, 2*A006519(n/2) otherwise.

Table of values

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

List of values

[-1, 2, -1, 4, -1, 2, -1, 8, -1, 2, -1, 4, -1, 2, -1, 16, -1, 2, -1, 4, -1, 2, -1, 8, -1, 2, -1, 4, -1, 2, -1, 32, -1, 2, -1, 4, -1, 2, -1, 8, -1, 2, -1, 4, -1, 2, -1, 16, -1, 2, -1, 4, -1, 2, -1, 8, -1, 2, -1, 4, -1, 2, -1, 64, -1, 2, -1, 4, -1, 2, -1, 8, -1, 2, -1, 4, -1, 2, -1, 16, -1, 2, -1, 4, -1, 2, -1, 8, -1, 2, -1, 4, -1, 2, -1, 32, -1, 2, -1]