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.

A180748 Numbers k such that k^2 - k + 1 is semiprime.

Table of values

n a(n)
1 5
2 8
3 10
4 11
5 12
6 14
7 20
8 24
9 27
10 29
11 30
12 32
13 33
14 35
15 36
16 37
17 40
18 41
19 43
20 44
21 45
22 46
23 48
24 49
25 52
26 53
27 54
28 57
29 61
30 64
31 66
32 71
33 73
34 74
35 77
36 83
37 84
38 85
39 86
40 87
41 92
42 93
43 94
44 96
45 97
46 98
47 99
48 104
49 105
50 109
51 113
52 114
53 115
54 116
55 121
56 123
57 124
58 125
59 126
60 127
61 128
62 130
63 133
64 135

List of values

[5, 8, 10, 11, 12, 14, 20, 24, 27, 29, 30, 32, 33, 35, 36, 37, 40, 41, 43, 44, 45, 46, 48, 49, 52, 53, 54, 57, 61, 64, 66, 71, 73, 74, 77, 83, 84, 85, 86, 87, 92, 93, 94, 96, 97, 98, 99, 104, 105, 109, 113, 114, 115, 116, 121, 123, 124, 125, 126, 127, 128, 130, 133, 135]