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.

A153396 G.f.: A(x) = F(x*G(x)^3) where F(x) = G(x/F(x)^2) = 1 + x*F(x)^2 is the g.f. of A000108 (Catalan) and G(x) = F(x*G(x)^2) = 1 + x*G(x)^4 is the g.f. of A002293.

Table of values

n a(n)
0 1
1 1
2 5
3 32
4 228
5 1726
6 13587
7 109923
8 907499
9 7609898
10 64609346
11 554108863
12 4792190298
13 41739160686
14 365746143064
15 3221723465187
16 28509044813580
17 253295607463902
18 2258539046009268
19 20203103111671575
20 181242298665210280

List of values

[1, 1, 5, 32, 228, 1726, 13587, 109923, 907499, 7609898, 64609346, 554108863, 4792190298, 41739160686, 365746143064, 3221723465187, 28509044813580, 253295607463902, 2258539046009268, 20203103111671575, 181242298665210280]