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.

A243291 Difference between n and the index of its largest prime factor: a(n) = n - A061395(n).

Table of values

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

List of values

[1, 1, 1, 3, 2, 4, 3, 7, 7, 7, 6, 10, 7, 10, 12, 15, 10, 16, 11, 17, 17, 17, 14, 22, 22, 20, 25, 24, 19, 27, 20, 31, 28, 27, 31, 34, 25, 30, 33, 37, 28, 38, 29, 39, 42, 37, 32, 46, 45, 47, 44, 46, 37, 52, 50, 52, 49, 48, 42, 57, 43, 51, 59, 63, 59, 61, 48, 61, 60]

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

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