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.

A023568 Number of distinct prime divisors of prime(n)-3.

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 1
6 2
7 2
8 1
9 2
10 2
11 2
12 2
13 2
14 2
15 2
16 2
17 2
18 2
19 1
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 2
34 2
35 2
36 2
37 3
38 2
39 2
40 3
41 2
42 2
43 2
44 3
45 2
46 2
47 2
48 3
49 2
50 2
51 3
52 2
53 3
54 2
55 2
56 3
57 3
58 2
59 2
60 2
61 3
62 3
63 2
64 3
65 3
66 2
67 2
68 2
69 2
70 2
71 3
72 2
73 3
74 3
75 2
76 3
77 2
78 2
79 2
80 3
81 2
82 3
83 2
84 3
85 2
86 3
87 2
88 2
89 2
90 3
91 2
92 3
93 2
94 2
95 2
96 2
97 3
98 3
99 3

List of values

[0, 0, 1, 1, 1, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 1, 2, 2, 2, 2, 3, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 3, 2, 3, 2, 2, 3, 3, 2, 2, 2, 3, 3, 2, 3, 3, 2, 2, 2, 2, 2, 3, 2, 3, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 2, 2, 2, 3, 3, 3]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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