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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.

A084127 Prime factor >= other prime factor of n-th semiprime.

Table of values

n a(n)
1 2
2 3
3 3
4 5
5 7
6 5
7 7
8 11
9 5
10 13
11 11
12 17
13 7
14 19
15 13
16 23
17 7
18 17
19 11
20 19
21 29
22 31
23 13
24 23
25 37
26 11
27 41
28 17
29 43
30 29
31 13
32 31
33 47
34 19
35 53
36 37
37 23
38 59
39 17
40 11
41 61
42 41
43 43
44 19
45 67
46 47
47 71
48 13
49 29
50 73
51 31
52 79
53 53
54 23
55 83
56 13
57 59
58 89
59 61
60 37
61 17
62 97
63 67
64 101
65 29
66 41
67 103
68 19
69 71
70 107
71 43
72 31

List of values

[2, 3, 3, 5, 7, 5, 7, 11, 5, 13, 11, 17, 7, 19, 13, 23, 7, 17, 11, 19, 29, 31, 13, 23, 37, 11, 41, 17, 43, 29, 13, 31, 47, 19, 53, 37, 23, 59, 17, 11, 61, 41, 43, 19, 67, 47, 71, 13, 29, 73, 31, 79, 53, 23, 83, 13, 59, 89, 61, 37, 17, 97, 67, 101, 29, 41, 103, 19, 71, 107, 43, 31]

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

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