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.

A118209 Expansion of Sum_{k>=1} lambda(k) * k * x^k/(1 + x^k) where lambda(k) is the Liouville function, A008836.

Table of values

n a(n)
1 1
2 -3
3 -2
4 5
5 -4
6 6
7 -6
8 -11
9 7
10 12
11 -10
12 -10
13 -12
14 18
15 8
16 21
17 -16
18 -21
19 -18
20 -20
21 12
22 30
23 -22
24 22
25 21
26 36
27 -20
28 -30
29 -28
30 -24
31 -30
32 -43
33 20
34 48
35 24
36 35
37 -36
38 54
39 24
40 44
41 -40
42 -36
43 -42
44 -50
45 -28
46 66
47 -46
48 -42
49 43
50 -63
51 32
52 -60
53 -52
54 60
55 40
56 66
57 36
58 84
59 -58
60 40
61 -60
62 90
63 -42
64 85
65 48
66 -60
67 -66
68 -80
69 44
70 -72
71 -70
72 -77
73 -72
74 108
75 -42

List of values

[1, -3, -2, 5, -4, 6, -6, -11, 7, 12, -10, -10, -12, 18, 8, 21, -16, -21, -18, -20, 12, 30, -22, 22, 21, 36, -20, -30, -28, -24, -30, -43, 20, 48, 24, 35, -36, 54, 24, 44, -40, -36, -42, -50, -28, 66, -46, -42, 43, -63, 32, -60, -52, 60, 40, 66, 36, 84, -58, 40, -60, 90, -42, 85, 48, -60, -66, -80, 44, -72, -70, -77, -72, 108, -42]