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.

A081844 Number of irreducible factors of x^(2n+1) - 1 over GF(2).

Table of values

n a(n)
0 1
1 2
2 2
3 3
4 3
5 2
6 2
7 5
8 3
9 2
10 6
11 3
12 3
13 4
14 2
15 7
16 5
17 6
18 2
19 5
20 3
21 4
22 8
23 3
24 5
25 8
26 2
27 5
28 5
29 2
30 2
31 13
32 7
33 2
34 6
35 3
36 9
37 8
38 6
39 3
40 5
41 2
42 12
43 5
44 9
45 10
46 14
47 5
48 3
49 8
50 2
51 3
52 15
53 2
54 4
55 5
56 5
57 6
58 12
59 9
60 3
61 8
62 4
63 19
64 11
65 2
66 10
67 11
68 3
69 2
70 6
71 5
72 7
73 10
74 2
75 11
76 13
77 14
78 4
79 5
80 9
81 2
82 14
83 3
84 3
85 12
86 2
87 9
88 5
89 2
90 2
91 5
92 7
93 8
94 20
95 3
96 3
97 20

List of values

[1, 2, 2, 3, 3, 2, 2, 5, 3, 2, 6, 3, 3, 4, 2, 7, 5, 6, 2, 5, 3, 4, 8, 3, 5, 8, 2, 5, 5, 2, 2, 13, 7, 2, 6, 3, 9, 8, 6, 3, 5, 2, 12, 5, 9, 10, 14, 5, 3, 8, 2, 3, 15, 2, 4, 5, 5, 6, 12, 9, 3, 8, 4, 19, 11, 2, 10, 11, 3, 2, 6, 5, 7, 10, 2, 11, 13, 14, 4, 5, 9, 2, 14, 3, 3, 12, 2, 9, 5, 2, 2, 5, 7, 8, 20, 3, 3, 20]