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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.

A079090 Sum of distinct prime factors of (prime(n)+1)*(prime(n+1)+1)/4.

Table of values

n a(n)
1 3
2 5
3 5
4 5
5 12
6 10
7 10
8 10
9 10
10 10
11 21
12 29
13 23
14 16
15 5
16 10
17 41
18 50
19 22
20 42
21 44
22 17
23 17
24 15
25 27
26 35
27 18
28 21
29 38
30 24
31 16
32 39
33 40
34 17
35 29
36 100
37 122
38 53
39 41
40 39
41 30
42 25
43 102
44 111
45 21
46 60
47 62
48 31
49 52
50 44
51 23
52 21
53 23
54 55
55 59
56 21
57 27
58 158
59 189
60 123
61 83
62 23
63 36
64 175
65 213
66 141
67 98
68 47

List of values

[3, 5, 5, 5, 12, 10, 10, 10, 10, 10, 21, 29, 23, 16, 5, 10, 41, 50, 22, 42, 44, 17, 17, 15, 27, 35, 18, 21, 38, 24, 16, 39, 40, 17, 29, 100, 122, 53, 41, 39, 30, 25, 102, 111, 21, 60, 62, 31, 52, 44, 23, 21, 23, 55, 59, 21, 27, 158, 189, 123, 83, 23, 36, 175, 213, 141, 98, 47]

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

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