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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.

A030371 a(n)=(# 1's)-(# 0's) in first n terms of A030363.

Table of values

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

List of values

[1, 1, 2, 1, 2, 2, 2, 2, 3, 4, 5, 5, 6, 5, 6, 5, 5, 6, 6, 5, 4, 5, 6, 5, 4, 4, 4, 5, 5, 6, 5, 4, 4, 4, 5, 5, 5, 6, 7, 8, 8, 8, 8, 8, 9, 10, 11, 11, 12, 13, 14, 13, 12, 13, 13, 12, 12, 11, 12, 12, 11, 12, 13, 14, 13, 14, 15, 15, 15, 14, 15, 16, 16, 16, 15]

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