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.

A375553 a(n) is the smallest prime q such that the concatenation (p + q)"q is a prime number, where p = prime(n).

Table of values

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

List of values

[3, 7, 3, 3, 19, 3, 31, 3, 3, 7, 11, 17, 3, 3, 3, 3, 13, 3, 29, 3, 23, 3, 3, 7, 41, 7, 3, 3, 3, 3, 3, 31, 7, 3, 3, 3, 11, 3, 7, 19, 3, 11, 7, 11, 3, 11, 3, 23, 7, 47, 19, 3, 23, 3, 7, 3, 7, 11, 3, 3, 11, 3, 23, 7, 3, 3, 3, 29, 7, 11, 7, 3, 11, 23, 3, 3, 3, 3, 13]