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.

A183608 G.f.: A(x) = Sum_{n>=0} x^n * C(x)^(n^2), where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers (A000108).

Table of values

n a(n)
0 1
1 1
2 2
3 7
4 29
5 133
6 658
7 3471
8 19400
9 114417
10 709815
11 4619048
12 31446579
13 223419752
14 1652599036
15 12698380493
16 101151995810
17 833740791381
18 7098646227614
19 62335051895044
20 563749889969108
21 5244173616702347
22 50117689766439784

List of values

[1, 1, 2, 7, 29, 133, 658, 3471, 19400, 114417, 709815, 4619048, 31446579, 223419752, 1652599036, 12698380493, 101151995810, 833740791381, 7098646227614, 62335051895044, 563749889969108, 5244173616702347, 50117689766439784]