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.

A263827 The number c_{Cc pi_1(B_1)}(2n) of the second amphicosm 2n-coverings over the first amphicosm.

Table of values

n a(n)
1 2
2 6
3 10
4 14
5 14
6 30
7 18
8 30
9 36
10 42
11 26
12 70
13 30
14 54
15 70
16 62
17 38
18 108
19 42
20 98
21 90
22 78
23 50
24 150
25 76
26 90
27 116
28 126
29 62
30 210
31 66
32 126
33 130
34 114
35 126
36 252
37 78
38 126
39 150
40 210
41 86
42 270
43 90
44 182
45 252
46 150
47 98
48 310
49 132
50 228
51 190
52 210
53 110
54 348
55 182
56 270
57 210
58 186
59 122
60 490
61 126
62 198
63 324
64 254
65 210
66 390
67 138
68 266
69 250
70 378

List of values

[2, 6, 10, 14, 14, 30, 18, 30, 36, 42, 26, 70, 30, 54, 70, 62, 38, 108, 42, 98, 90, 78, 50, 150, 76, 90, 116, 126, 62, 210, 66, 126, 130, 114, 126, 252, 78, 126, 150, 210, 86, 270, 90, 182, 252, 150, 98, 310, 132, 228, 190, 210, 110, 348, 182, 270, 210, 186, 122, 490, 126, 198, 324, 254, 210, 390, 138, 266, 250, 378]