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.

A370896 Partial alternating sums of the squarefree kernel function (A007947).

Table of values

n a(n)
1 1
2 -1
3 2
4 0
5 5
6 -1
7 6
8 4
9 7
10 -3
11 8
12 2
13 15
14 1
15 16
16 14
17 31
18 25
19 44
20 34
21 55
22 33
23 56
24 50
25 55
26 29
27 32
28 18
29 47
30 17
31 48
32 46
33 79
34 45
35 80
36 74
37 111
38 73
39 112
40 102
41 143
42 101
43 144
44 122
45 137
46 91
47 138
48 132
49 139
50 129
51 180
52 154
53 207
54 201
55 256
56 242
57 299
58 241
59 300
60 270
61 331
62 269

List of values

[1, -1, 2, 0, 5, -1, 6, 4, 7, -3, 8, 2, 15, 1, 16, 14, 31, 25, 44, 34, 55, 33, 56, 50, 55, 29, 32, 18, 47, 17, 48, 46, 79, 45, 80, 74, 111, 73, 112, 102, 143, 101, 144, 122, 137, 91, 138, 132, 139, 129, 180, 154, 207, 201, 256, 242, 299, 241, 300, 270, 331, 269]