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.

A363443 G.f. satisfies A(x) = exp( Sum_{k>=1} (-1)^(k+1) * A(x^k) * (4*x)^k/k ).

Table of values

n a(n)
0 1
1 4
2 16
3 128
4 864
5 6912
6 55936
7 470016
8 4025600
9 35144704
10 311190784
11 2789206016
12 25254028288
13 230652174336
14 2122466561024
15 19659305379840
16 183146187440128
17 1714933158969344
18 16131631511164928
19 152366562180972544

List of values

[1, 4, 16, 128, 864, 6912, 55936, 470016, 4025600, 35144704, 311190784, 2789206016, 25254028288, 230652174336, 2122466561024, 19659305379840, 183146187440128, 1714933158969344, 16131631511164928, 152366562180972544]