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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.

A181186 Number of prime factors of (2^n - 1) * n! + 1, counted with multiplicity.

Table of values

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

List of values

[1, 1, 1, 2, 2, 1, 3, 3, 2, 2, 3, 2, 3, 5, 3, 2, 1, 3, 2, 2, 3, 3, 2, 6, 1, 4, 4, 3, 3, 3, 2, 2, 4, 3, 5, 2, 4, 2, 4, 1, 4, 4, 3, 3, 1, 3, 4, 5, 3, 4, 4, 5, 2, 2, 2, 6, 4, 2, 5, 3, 7, 4, 3, 2, 5, 3, 4, 4, 4, 2, 7, 6, 7, 3, 5, 2, 4, 3, 8, 8, 6, 4]

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