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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.

A355686 Dirichlet inverse of A276150, where A276150(n) is the sum of digits when n is written in primorial base.

Table of values

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

List of values

[1, -1, -2, -1, -3, 3, -2, 1, 1, 3, -4, 2, -3, 1, 8, -1, -5, -5, -4, 5, 3, 3, -6, -7, 4, 1, -2, 2, -7, -11, -2, 3, 13, 7, 8, 4, -3, 5, 8, -5, -5, -1, -4, 10, -7, 7, -6, 8, -1, -4, 14, 7, -7, 9, 18, 1, 9, 7, -8, -16, -3, 1, 4, -1, 13, -17, -4, 7, 19, -3, -6, 16, -5, 1, -16, 4, 9, -7, -6, 3, 6, 3, -8, -5, 23, 1, 20]