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.

A372263 Least odd prime factor of the n-th sum of two consecutive primes, A001043(n) = prime(n) + prime(n+1), or 2 if there is no odd prime factor.

Table of values

n a(n)
1 5
2 2
3 3
4 3
5 3
6 3
7 3
8 3
9 13
10 3
11 17
12 3
13 3
14 3
15 5
16 7
17 3
18 2
19 3
20 3
21 19
22 3
23 43
24 3
25 3
26 3
27 3
28 3
29 3
30 3
31 3
32 67
33 3
34 3
35 3
36 7
37 5
38 3
39 5
40 11
41 3
42 3
43 3
44 3
45 3
46 5
47 7
48 3
49 3
50 3
51 59
52 3
53 3
54 127
55 5
56 7
57 3
58 137
59 3
60 3
61 3
62 3
63 3
64 3
65 3
66 3
67 167
68 3
69 3
70 3
71 89
72 3
73 5
74 47
75 3
76 193
77 3
78 3
79 3
80 3
81 3
82 3
83 3
84 109
85 3
86 223

List of values

[5, 2, 3, 3, 3, 3, 3, 3, 13, 3, 17, 3, 3, 3, 5, 7, 3, 2, 3, 3, 19, 3, 43, 3, 3, 3, 3, 3, 3, 3, 3, 67, 3, 3, 3, 7, 5, 3, 5, 11, 3, 3, 3, 3, 3, 5, 7, 3, 3, 3, 59, 3, 3, 127, 5, 7, 3, 137, 3, 3, 3, 3, 3, 3, 3, 3, 167, 3, 3, 3, 89, 3, 5, 47, 3, 193, 3, 3, 3, 3, 3, 3, 3, 109, 3, 223]