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.

A092956 a(n) = (2*n+2)!/((n+2)*n!).

Table of values

n a(n)
0 1
1 8
2 90
3 1344
4 25200
5 570240
6 15135120
7 461260800
8 15878903040
9 609493248000
10 25812039052800
11 1195656969830400
12 60138698780160000
13 3264143527636992000
14 190165504623494400000
15 11836497605427855360000
16 783921372659482337280000

List of values

[1, 8, 90, 1344, 25200, 570240, 15135120, 461260800, 15878903040, 609493248000, 25812039052800, 1195656969830400, 60138698780160000, 3264143527636992000, 190165504623494400000, 11836497605427855360000, 783921372659482337280000]