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.

A099812 Number of distinct primes dividing 2n (i.e., omega(2n)).

Table of values

n a(n)
1 1
2 1
3 2
4 1
5 2
6 2
7 2
8 1
9 2
10 2
11 2
12 2
13 2
14 2
15 3
16 1
17 2
18 2
19 2
20 2
21 3
22 2
23 2
24 2
25 2
26 2
27 2
28 2
29 2
30 3
31 2
32 1
33 3
34 2
35 3
36 2
37 2
38 2
39 3
40 2
41 2
42 3
43 2
44 2
45 3
46 2
47 2
48 2
49 2
50 2
51 3
52 2
53 2
54 2
55 3
56 2
57 3
58 2
59 2
60 3
61 2
62 2
63 3
64 1
65 3
66 3
67 2
68 2
69 3
70 3
71 2
72 2
73 2
74 2
75 3
76 2
77 3
78 3
79 2
80 2
81 2
82 2
83 2
84 3
85 3
86 2
87 3
88 2
89 2
90 3
91 3
92 2
93 3
94 2
95 3
96 2
97 2
98 2
99 3
100 2
101 2
102 3
103 2
104 2
105 4

List of values

[1, 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 3, 1, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 1, 3, 2, 3, 2, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 2, 3, 2, 2, 3, 1, 3, 3, 2, 2, 3, 3, 2, 2, 2, 2, 3, 2, 3, 3, 2, 2, 2, 2, 2, 3, 3, 2, 3, 2, 2, 3, 3, 2, 3, 2, 3, 2, 2, 2, 3, 2, 2, 3, 2, 2, 4]