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.

A360457 Two times the median of the set of distinct prime indices of n; a(1) = 1.

Table of values

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

List of values

[1, 2, 4, 2, 6, 3, 8, 2, 4, 4, 10, 3, 12, 5, 5, 2, 14, 3, 16, 4, 6, 6, 18, 3, 6, 7, 4, 5, 20, 4, 22, 2, 7, 8, 7, 3, 24, 9, 8, 4, 26, 4, 28, 6, 5, 10, 30, 3, 8, 4, 9, 7, 32, 3, 8, 5, 10, 11, 34, 4, 36, 12, 6, 2, 9, 4, 38, 8, 11, 6, 40, 3, 42, 13, 5, 9, 9, 4, 44, 4]