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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.

A176447 a(2n) = -n, a(2n+1) = 2n+1.

Table of values

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

List of values

[0, 1, -1, 3, -2, 5, -3, 7, -4, 9, -5, 11, -6, 13, -7, 15, -8, 17, -9, 19, -10, 21, -11, 23, -12, 25, -13, 27, -14, 29, -15, 31, -16, 33, -17, 35, -18, 37, -19, 39, -20, 41, -21, 43, -22, 45, -23, 47, -24, 49, -25, 51, -26, 53, -27, 55, -28, 57, -29, 59, -30, 61, -31, 63, -32, 65, -33, 67, -34, 69, -35]

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

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