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.

A385952 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(k+3,3) * a(k) * a(n-1-k).

Table of values

n a(n)
0 1
1 1
2 5
3 59
4 1309
5 48790
6 2840931
7 244770680
8 29887602613
9 4993307581843
10 1108754325139526
11 319359741512132370
12 116893982001130825135
13 53422902443413341967604
14 30024521959524315980717288
15 20477109546794819263709728560
16 16750490995674468051531269811269

List of values

[1, 1, 5, 59, 1309, 48790, 2840931, 244770680, 29887602613, 4993307581843, 1108754325139526, 319359741512132370, 116893982001130825135, 53422902443413341967604, 30024521959524315980717288, 20477109546794819263709728560, 16750490995674468051531269811269]