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.

A251392 Indices of nonprimes in A098550.

Table of values

n a(n)
1 1
2 4
3 5
4 6
5 7
6 8
7 10
8 11
9 12
10 13
11 14
12 16
13 17
14 18
15 19
16 20
17 21
18 24
19 25
20 26
21 27
22 28
23 29
24 31
25 32
26 33
27 34
28 35
29 36
30 37
31 38
32 39
33 40
34 41
35 42
36 44
37 45
38 46
39 47
40 48
41 49
42 50
43 52
44 53
45 54
46 55
47 56
48 57
49 58
50 59
51 60
52 63
53 64
54 65
55 66
56 67
57 68
58 69
59 70
60 71
61 72
62 73
63 74
64 75
65 76
66 77

List of values

[1, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77]