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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.

A257902 Sequence (d(n)) generated by Algorithm (in Comments) with a(1) = 0 and d(1) = 2.

Table of values

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

List of values

[2, 1, 3, -2, 4, -3, 5, -1, 6, -8, 7, 8, -11, 9, -7, 10, -6, -5, 12, 11, -19, 13, -10, 14, -15, 16, -13, 15, -9, 17, -18, 19, -20, 18, -12, 20, -23, 21, -17, 22, -24, 23, -16, 24, -22, 25, -26, 27, -25, 26, -14, -4, 28, -35, 29, -28, 30, 31, -57, 32, -31, 33]

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

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