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.

A086147 Sum of the orders of the elements in the group GL(2,Z_n).

Table of values

n a(n)
1 1
2 13
3 219
4 367
5 4891
6 1977
7 36085
8 9791
9 46731
10 39133
11 479157
12 37119
13 1289911
14 243703
15 375219
16 305599
17 6991319
18 299913
19 11500123
20 667219
21 2610657
22 3723423
23 40035651
24 781127
25 14928331
26 8544673
27 11297307
28 4540153
29 129539703
30 2739477
31 209881105
32 9748415

List of values

[1, 13, 219, 367, 4891, 1977, 36085, 9791, 46731, 39133, 479157, 37119, 1289911, 243703, 375219, 305599, 6991319, 299913, 11500123, 667219, 2610657, 3723423, 40035651, 781127, 14928331, 8544673, 11297307, 4540153, 129539703, 2739477, 209881105, 9748415]