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.

A367007 Number of distinct prime factors of n*2^n + 1.

Table of values

n a(n)
0 0
1 1
2 1
3 1
4 2
5 2
6 3
7 3
8 2
9 2
10 3
11 2
12 3
13 2
14 3
15 3
16 2
17 3
18 4
19 4
20 3
21 2
22 4
23 4
24 4
25 4
26 4
27 4
28 2
29 3
30 5
31 5
32 3
33 2
34 5
35 2
36 3
37 3
38 3
39 3
40 3
41 4
42 4
43 5
44 4
45 4
46 5
47 5
48 4
49 2
50 6
51 3
52 6
53 3
54 5
55 4
56 3
57 5
58 5
59 4
60 4
61 7
62 3
63 3
64 6
65 5
66 7
67 4
68 4
69 5
70 5
71 5
72 5
73 5
74 3
75 5
76 4
77 4
78 4
79 6
80 4
81 4
82 4
83 5
84 4
85 6
86 6

List of values

[0, 1, 1, 1, 2, 2, 3, 3, 2, 2, 3, 2, 3, 2, 3, 3, 2, 3, 4, 4, 3, 2, 4, 4, 4, 4, 4, 4, 2, 3, 5, 5, 3, 2, 5, 2, 3, 3, 3, 3, 3, 4, 4, 5, 4, 4, 5, 5, 4, 2, 6, 3, 6, 3, 5, 4, 3, 5, 5, 4, 4, 7, 3, 3, 6, 5, 7, 4, 4, 5, 5, 5, 5, 5, 3, 5, 4, 4, 4, 6, 4, 4, 4, 5, 4, 6, 6]