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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.

A051950 Differences between values of tau(n) (A000005): a(n) = tau(n)-tau(n-1).

Table of values

n a(n)
2 1
3 0
4 1
5 -1
6 2
7 -2
8 2
9 -1
10 1
11 -2
12 4
13 -4
14 2
15 0
16 1
17 -3
18 4
19 -4
20 4
21 -2
22 0
23 -2
24 6
25 -5
26 1
27 0
28 2
29 -4
30 6
31 -6
32 4
33 -2
34 0
35 0
36 5
37 -7
38 2
39 0
40 4
41 -6
42 6
43 -6
44 4
45 0
46 -2
47 -2
48 8
49 -7
50 3
51 -2
52 2
53 -4
54 6
55 -4
56 4
57 -4
58 0
59 -2
60 10
61 -10
62 2
63 2
64 1
65 -3
66 4
67 -6
68 4
69 -2
70 4
71 -6
72 10
73 -10
74 2
75 2
76 0
77 -2
78 4
79 -6
80 8
81 -5
82 -1
83 -2
84 10
85 -8
86 0
87 0
88 4
89 -6
90 10

List of values

[1, 0, 1, -1, 2, -2, 2, -1, 1, -2, 4, -4, 2, 0, 1, -3, 4, -4, 4, -2, 0, -2, 6, -5, 1, 0, 2, -4, 6, -6, 4, -2, 0, 0, 5, -7, 2, 0, 4, -6, 6, -6, 4, 0, -2, -2, 8, -7, 3, -2, 2, -4, 6, -4, 4, -4, 0, -2, 10, -10, 2, 2, 1, -3, 4, -6, 4, -2, 4, -6, 10, -10, 2, 2, 0, -2, 4, -6, 8, -5, -1, -2, 10, -8, 0, 0, 4, -6, 10]