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.

A242601 Integers repeated twice in a canonical order.

Table of values

n a(n)
0 0
1 0
2 1
3 1
4 -1
5 -1
6 2
7 2
8 -2
9 -2
10 3
11 3
12 -3
13 -3
14 4
15 4
16 -4
17 -4
18 5
19 5
20 -5
21 -5
22 6
23 6
24 -6
25 -6
26 7
27 7
28 -7
29 -7
30 8
31 8
32 -8
33 -8
34 9
35 9
36 -9
37 -9
38 10
39 10
40 -10
41 -10
42 11
43 11
44 -11
45 -11
46 12
47 12
48 -12
49 -12
50 13
51 13
52 -13
53 -13
54 14
55 14
56 -14
57 -14
58 15
59 15
60 -15
61 -15
62 16
63 16
64 -16
65 -16
66 17
67 17
68 -17
69 -17
70 18
71 18
72 -18
73 -18
74 19
75 19
76 -19
77 -19
78 20
79 20
80 -20
81 -20

List of values

[0, 0, 1, 1, -1, -1, 2, 2, -2, -2, 3, 3, -3, -3, 4, 4, -4, -4, 5, 5, -5, -5, 6, 6, -6, -6, 7, 7, -7, -7, 8, 8, -8, -8, 9, 9, -9, -9, 10, 10, -10, -10, 11, 11, -11, -11, 12, 12, -12, -12, 13, 13, -13, -13, 14, 14, -14, -14, 15, 15, -15, -15, 16, 16, -16, -16, 17, 17, -17, -17, 18, 18, -18, -18, 19, 19, -19, -19, 20, 20, -20, -20]

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

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