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.

A331660 E.g.f. A(x) satisfies: d/dx A(x) = 1 + (1/(1 - x)) * A(x/(1 - x)).

Table of values

n a(n)
1 1
2 1
3 5
4 32
5 280
6 3280
7 49480
8 927560
9 21037640
10 566134160
11 17803754560
12 646052181520
13 26757321804880
14 1252934215973600
15 65791336312915520
16 3846554938702140320
17 248841434876849499040
18 17713758333248102781760
19 1380631354206969100115200

List of values

[1, 1, 5, 32, 280, 3280, 49480, 927560, 21037640, 566134160, 17803754560, 646052181520, 26757321804880, 1252934215973600, 65791336312915520, 3846554938702140320, 248841434876849499040, 17713758333248102781760, 1380631354206969100115200]