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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.

A326776 a(n) is the smallest divisor of the n-th nonprime number (A018252(n)) not already in the sequence.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 9
6 5
7 6
8 7
9 15
10 8
11 18
12 10
13 21
14 11
15 12
16 25
17 13
18 27
19 14
20 30
21 16
22 33
23 17
24 35
25 36
26 19
27 39
28 20
29 42
30 22
31 45
32 23
33 24
34 49
35 50
36 51
37 26
38 54
39 55
40 28
41 57
42 29
43 60
44 31
45 63
46 32
47 65
48 66
49 34
50 69
51 70
52 72
53 37
54 75
55 38
56 77
57 78
58 40
59 81
60 41
61 84
62 85
63 43
64 87
65 44
66 90
67 91

List of values

[1, 2, 3, 4, 9, 5, 6, 7, 15, 8, 18, 10, 21, 11, 12, 25, 13, 27, 14, 30, 16, 33, 17, 35, 36, 19, 39, 20, 42, 22, 45, 23, 24, 49, 50, 51, 26, 54, 55, 28, 57, 29, 60, 31, 63, 32, 65, 66, 34, 69, 70, 72, 37, 75, 38, 77, 78, 40, 81, 41, 84, 85, 43, 87, 44, 90, 91]

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

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