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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.

A225644 a(n) = number of distinct values in column n of A225640.

Table of values

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

List of values

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

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

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