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.

A267521 Integers whose base-10 representation (Bm,...,B1,B0) is such that the polynomial f(x) = B0 + B1*x + ... + Bm*x^m is irreducible over the ring of integers, 0 <= Bi <= 9.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 7
6 10
7 11
8 12
9 13
10 14
11 15
12 16
13 17
14 18
15 19
16 21
17 23
18 25
19 27
20 29
21 31
22 32
23 34
24 35
25 37
26 38
27 41
28 43
29 45
30 47
31 49
32 51
33 52
34 53
35 53
36 56
37 57
38 58
39 59
40 61
41 65
42 67
43 71
44 72
45 73
46 74
47 75
48 76
49 78
50 79
51 81
52 83
53 85
54 87
55 89
56 91
57 92
58 94
59 95
60 97
61 98
62 101
63 102
64 103
65 104
66 105
67 106
68 107
69 108
70 109
71 111
72 112
73 113
74 114
75 115
76 116
77 117
78 118
79 119

List of values

[1, 2, 3, 5, 7, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 23, 25, 27, 29, 31, 32, 34, 35, 37, 38, 41, 43, 45, 47, 49, 51, 52, 53, 53, 56, 57, 58, 59, 61, 65, 67, 71, 72, 73, 74, 75, 76, 78, 79, 81, 83, 85, 87, 89, 91, 92, 94, 95, 97, 98, 101, 102, 103, 104, 105, 106, 107, 108, 109, 111, 112, 113, 114, 115, 116, 117, 118, 119]