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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.

A255574 a(n) = Number of terms of A206074 in range 0 .. n.

Table of values

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

List of values

[0, 0, 1, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 8, 8, 8, 8, 9, 9, 10, 10, 10, 10, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 17, 17, 18, 18, 18, 18, 19, 19, 20, 20, 20, 20, 20, 20, 21, 21, 22, 22, 23, 23, 24, 24, 24, 24, 25, 25, 26, 26, 27, 27]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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