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.

A166741 E.g.f.: exp(2*arcsin(x)).

Table of values

n a(n)
0 1
1 2
2 4
3 10
4 32
5 130
6 640
7 3770
8 25600
9 199810
10 1740800
11 16983850
12 181043200
13 2122981250
14 26794393600
15 367275756250
16 5358878720000
17 84106148181250
18 1393308467200000
19 24643101417106250
20 457005177241600000

List of values

[1, 2, 4, 10, 32, 130, 640, 3770, 25600, 199810, 1740800, 16983850, 181043200, 2122981250, 26794393600, 367275756250, 5358878720000, 84106148181250, 1393308467200000, 24643101417106250, 457005177241600000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.