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.

A160121 First differences of A160120.

Table of values

n a(n)
1 1
2 3
3 3
4 9
5 3
6 9
7 9
8 21
9 9
10 9
11 9
12 21
13 15
14 21
15 27
16 51
17 27
18 9
19 9
20 21
21 15
22 21
23 27
24 51
25 33
26 21
27 27
28 51
29 51
30 57
31 69
32 117
33 81
34 21
35 9
36 21
37 15
38 21
39 27
40 51
41 33
42 21
43 27
44 51
45 51
46 57
47 69
48 117
49 87
50 33
51 27
52 51
53 51
54 57
55 75
56 129
57 117
58 75
59 69
60 117
61 135
62 141
63 171
64 279
65 231
66 69
67 9
68 21
69 15
70 21
71 27

List of values

[1, 3, 3, 9, 3, 9, 9, 21, 9, 9, 9, 21, 15, 21, 27, 51, 27, 9, 9, 21, 15, 21, 27, 51, 33, 21, 27, 51, 51, 57, 69, 117, 81, 21, 9, 21, 15, 21, 27, 51, 33, 21, 27, 51, 51, 57, 69, 117, 87, 33, 27, 51, 51, 57, 75, 129, 117, 75, 69, 117, 135, 141, 171, 279, 231, 69, 9, 21, 15, 21, 27]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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