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.

A208460 Triangle read by rows: T(n,k) = n minus the k-th proper divisor of n.

Table of values

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

List of values

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

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

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