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.

A087047 a(n) = n*(n+1)*(n+2)*a(n-1)/6 for n >= 1; a(0) = 1.

Table of values

n a(n)
0 1
1 1
2 4
3 40
4 800
5 28000
6 1568000
7 131712000
8 15805440000
9 2607897600000
10 573737472000000
11 164088916992000000
12 59728365785088000000
13 27176406432215040000000
14 15218787602040422400000000
15 10348775569387487232000000000
16 8444600864620189581312000000000
17 8182818237816963704291328000000000

List of values

[1, 1, 4, 40, 800, 28000, 1568000, 131712000, 15805440000, 2607897600000, 573737472000000, 164088916992000000, 59728365785088000000, 27176406432215040000000, 15218787602040422400000000, 10348775569387487232000000000, 8444600864620189581312000000000, 8182818237816963704291328000000000]