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.

A338912 Lesser prime index of the n-th semiprime.

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 1
6 2
7 2
8 1
9 3
10 1
11 2
12 1
13 3
14 1
15 2
16 1
17 4
18 2
19 3
20 2
21 1
22 1
23 3
24 2
25 1
26 4
27 1
28 3
29 1
30 2
31 4
32 2
33 1
34 3
35 1
36 2
37 3
38 1
39 4
40 5
41 1
42 2
43 2
44 4
45 1
46 2
47 1
48 5
49 3
50 1
51 3
52 1
53 2
54 4
55 1
56 6
57 2
58 1
59 2
60 3
61 5
62 1
63 2
64 1
65 4
66 3
67 1
68 5
69 2
70 1
71 3
72 4
73 1
74 2
75 6
76 1
77 3
78 2
79 6
80 2
81 5
82 1
83 4
84 1
85 3
86 2
87 1

List of values

[1, 1, 2, 1, 1, 2, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 4, 2, 3, 2, 1, 1, 3, 2, 1, 4, 1, 3, 1, 2, 4, 2, 1, 3, 1, 2, 3, 1, 4, 5, 1, 2, 2, 4, 1, 2, 1, 5, 3, 1, 3, 1, 2, 4, 1, 6, 2, 1, 2, 3, 5, 1, 2, 1, 4, 3, 1, 5, 2, 1, 3, 4, 1, 2, 6, 1, 3, 2, 6, 2, 5, 1, 4, 1, 3, 2, 1]