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.

A226560 exp( Sum_{n>=1} A226561(n)*x^n/n ), where A226561(n) = Sum_{d|n} d^n*phi(d).

Table of values

n a(n)
0 1
1 1
2 3
3 21
4 155
5 2691
6 18924
7 732230
8 9223166
9 269544904
10 4308339664
11 264486350330
12 3252603264996
13 283488024709418
14 5058264756924275
15 239269507574263597
16 9478611818612363119
17 788664781674375008343
18 13928483471031628860556
19 1889997256419148641470346

List of values

[1, 1, 3, 21, 155, 2691, 18924, 732230, 9223166, 269544904, 4308339664, 264486350330, 3252603264996, 283488024709418, 5058264756924275, 239269507574263597, 9478611818612363119, 788664781674375008343, 13928483471031628860556, 1889997256419148641470346]