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.

A217902 O.g.f.: Sum_{n>=0} 3*n^n*(n+3)^(n-1) * exp(-n*(n+3)*x) * x^n / n!.

Table of values

n a(n)
0 1
1 3
2 18
3 210
4 3696
5 86436
6 2521800
7 88274640
8 3608360064
9 168822613872
10 8901871248480
11 522534101560224
12 33804242536287744
13 2390169742849449216
14 183412961210465667072
15 15183107016739655860224
16 1348837954231568133427200
17 128012762381954718934183680

List of values

[1, 3, 18, 210, 3696, 86436, 2521800, 88274640, 3608360064, 168822613872, 8901871248480, 522534101560224, 33804242536287744, 2390169742849449216, 183412961210465667072, 15183107016739655860224, 1348837954231568133427200, 128012762381954718934183680]