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.

A008643 Molien series for group of 4 X 4 upper triangular matrices over GF(2).

Table of values

n a(n)
0 1
1 1
2 2
3 2
4 4
5 4
6 6
7 6
8 10
9 10
10 14
11 14
12 20
13 20
14 26
15 26
16 35
17 35
18 44
19 44
20 56
21 56
22 68
23 68
24 84
25 84
26 100
27 100
28 120
29 120
30 140
31 140
32 165
33 165
34 190
35 190
36 220
37 220
38 250
39 250
40 286
41 286
42 322
43 322
44 364
45 364
46 406
47 406
48 455
49 455
50 504
51 504
52 560
53 560
54 616
55 616
56 680
57 680
58 744

List of values

[1, 1, 2, 2, 4, 4, 6, 6, 10, 10, 14, 14, 20, 20, 26, 26, 35, 35, 44, 44, 56, 56, 68, 68, 84, 84, 100, 100, 120, 120, 140, 140, 165, 165, 190, 190, 220, 220, 250, 250, 286, 286, 322, 322, 364, 364, 406, 406, 455, 455, 504, 504, 560, 560, 616, 616, 680, 680, 744]