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.

A317391 Positive integers that have a unique representation of the form 1 + p1 * (1 + p2* ... * (1 + p_j)...), where [p1, ..., p_j] is a (possibly empty) list of distinct primes.

Table of values

n a(n)
1 1
2 3
3 4
4 6
5 8
6 9
7 10
8 12
9 13
10 14
11 16
12 17
13 18
14 19
15 20
16 21
17 22
18 24
19 30
20 32
21 34
22 38
23 39
24 42
25 44
26 45
27 46
28 48
29 53
30 54
31 55
32 58
33 59
34 60
35 62
36 64
37 65
38 68
39 69
40 70
41 72
42 73
43 74
44 75
45 76
46 79
47 80
48 83
49 84
50 86
51 90
52 92
53 93
54 94
55 98
56 99
57 100
58 101
59 102
60 104
61 105
62 107
63 108
64 109

List of values

[1, 3, 4, 6, 8, 9, 10, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 24, 30, 32, 34, 38, 39, 42, 44, 45, 46, 48, 53, 54, 55, 58, 59, 60, 62, 64, 65, 68, 69, 70, 72, 73, 74, 75, 76, 79, 80, 83, 84, 86, 90, 92, 93, 94, 98, 99, 100, 101, 102, 104, 105, 107, 108, 109]