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.

A307487 G.f. A(x) satisfies: A(x) = 1 + Sum_{k>=1} mu(k)*x^k*A(x)^k/(1 - x^k*A(x)^k)^2, where mu() is the Möbius function (A008683).

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 19
5 65
6 231
7 847
8 3187
9 12223
10 47610
11 187836
12 749055
13 3014453
14 12226718
15 49931342
16 205133243
17 847224291
18 3515681010
19 14650664552
20 61286007817
21 257256430363
22 1083272333869
23 4574656128903
24 19369837160689
25 82214738381631
26 349743277470990

List of values

[1, 1, 2, 6, 19, 65, 231, 847, 3187, 12223, 47610, 187836, 749055, 3014453, 12226718, 49931342, 205133243, 847224291, 3515681010, 14650664552, 61286007817, 257256430363, 1083272333869, 4574656128903, 19369837160689, 82214738381631, 349743277470990]