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.

A224480 Least prime q such that x^n + sum_{k=1}^n p_k*x^{n-k} is irreducible modulo q, where p_k denotes the k-th prime.

Table of values

n a(n)
1 2
2 11
3 2
4 2
5 2
6 2
7 2
8 53
9 13
10 3
11 5
12 2
13 2
14 2
15 2
16 421
17 29
18 19
19 7
20 2
21 29
22 37
23 2
24 743
25 41
26 23
27 13
28 47
29 5
30 2
31 269
32 139
33 211
34 31
35 73
36 307
37 2
38 2
39 5
40 89
41 23
42 839
43 181
44 379
45 173
46 89
47 2
48 353
49 101
50 307
51 3
52 29
53 389
54 2
55 863
56 71
57 503
58 619
59 193
60 2

List of values

[2, 11, 2, 2, 2, 2, 2, 53, 13, 3, 5, 2, 2, 2, 2, 421, 29, 19, 7, 2, 29, 37, 2, 743, 41, 23, 13, 47, 5, 2, 269, 139, 211, 31, 73, 307, 2, 2, 5, 89, 23, 839, 181, 379, 173, 89, 2, 353, 101, 307, 3, 29, 389, 2, 863, 71, 503, 619, 193, 2]