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.

A143098 First differences of A143097.

Table of values

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

List of values

[1, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2, 2, -1, 2]