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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.

A068318 Sum of prime factors of n-th semiprime.

Table of values

n a(n)
1 4
2 5
3 6
4 7
5 9
6 8
7 10
8 13
9 10
10 15
11 14
12 19
13 12
14 21
15 16
16 25
17 14
18 20
19 16
20 22
21 31
22 33
23 18
24 26
25 39
26 18
27 43
28 22
29 45
30 32
31 20
32 34
33 49
34 24
35 55
36 40
37 28
38 61
39 24
40 22
41 63
42 44
43 46
44 26
45 69
46 50
47 73
48 24
49 34
50 75
51 36
52 81
53 56
54 30
55 85
56 26
57 62
58 91
59 64
60 42
61 28
62 99
63 70
64 103
65 36
66 46
67 105
68 30
69 74
70 109

List of values

[4, 5, 6, 7, 9, 8, 10, 13, 10, 15, 14, 19, 12, 21, 16, 25, 14, 20, 16, 22, 31, 33, 18, 26, 39, 18, 43, 22, 45, 32, 20, 34, 49, 24, 55, 40, 28, 61, 24, 22, 63, 44, 46, 26, 69, 50, 73, 24, 34, 75, 36, 81, 56, 30, 85, 26, 62, 91, 64, 42, 28, 99, 70, 103, 36, 46, 105, 30, 74, 109]

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

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