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.

A349515 G.f. A(x) satisfies: A(x) = (1 + x * A(x)^3) / (1 - 4 * x).

Table of values

n a(n)
0 1
1 5
2 35
3 320
4 3415
5 39805
6 490660
7 6288120
8 82935615
9 1118324655
10 15346920635
11 213637539620
12 3009391426340
13 42817011909180
14 614411343795960
15 8881874095390320
16 129224763346019215
17 1890813939312392755
18 27805864640943573385
19 410748152876389349720

List of values

[1, 5, 35, 320, 3415, 39805, 490660, 6288120, 82935615, 1118324655, 15346920635, 213637539620, 3009391426340, 42817011909180, 614411343795960, 8881874095390320, 129224763346019215, 1890813939312392755, 27805864640943573385, 410748152876389349720]