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.

A080893 Expansion of e.g.f. exp(x*C(x)) = exp((1-sqrt(1-4*x))/2), where C(x) is the g.f. of the Catalan numbers A000108.

Table of values

n a(n)
0 1
1 1
2 3
3 19
4 193
5 2721
6 49171
7 1084483
8 28245729
9 848456353
10 28875761731
11 1098127402131
12 46150226651233
13 2124008553358849
14 106246577894593683
15 5739439214861417731
16 332993721039856822081
17 20651350143685984386753

List of values

[1, 1, 3, 19, 193, 2721, 49171, 1084483, 28245729, 848456353, 28875761731, 1098127402131, 46150226651233, 2124008553358849, 106246577894593683, 5739439214861417731, 332993721039856822081, 20651350143685984386753]