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.

A346186 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(n-1,k)^3 * a(k) * a(n-k-1).

Table of values

n a(n)
0 1
1 1
2 2
3 12
4 132
5 2664
6 86328
7 4257504
8 302249232
9 29749088160
10 3929593244256
11 678729769735680
12 149951093054923584
13 41593439995316826624
14 14254785976456164378240
15 5952723682598023085466624
16 2992204352832467277009072384
17 1791038631707465961597691673088

List of values

[1, 1, 2, 12, 132, 2664, 86328, 4257504, 302249232, 29749088160, 3929593244256, 678729769735680, 149951093054923584, 41593439995316826624, 14254785976456164378240, 5952723682598023085466624, 2992204352832467277009072384, 1791038631707465961597691673088]