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.

A054989 Number of prime divisors of -1 + (product of first n primes).

Table of values

n a(n)
1 0
2 1
3 1
4 2
5 1
6 1
7 2
8 3
9 3
10 2
11 2
12 4
13 1
14 2
15 3
16 3
17 2
18 3
19 3
20 2
21 2
22 4
23 3
24 1
25 2
26 2
27 4
28 4
29 4
30 3
31 3
32 3
33 3
34 3
35 3
36 4
37 4
38 4
39 5
40 3
41 5
42 4
43 5
44 4
45 4
46 4
47 4
48 2
49 3
50 3
51 2
52 4
53 3
54 4
55 2
56 4
57 4
58 7
59 4
60 3
61 3
62 4
63 4
64 3
65 3
66 1
67 3
68 1
69 4
70 3
71 5
72 5
73 4
74 4
75 6
76 5
77 5
78 3
79 4
80 3
81 4
82 4
83 3
84 4
85 2
86 3
87 4

List of values

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