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.

A071215 Number of distinct prime factors of sum of 2 successive primes.

Table of values

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

List of values

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