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.

A129933 a(n) = (n*(n+1)/2+1)!/n!.

Table of values

n a(n)
0 1
1 2
2 12
3 840
4 1663200
5 174356582400
6 1561112121913344000
7 1754317855900734514790400000
8 341362923889542287855059017400320000000
9 15163751542692044063740921044974247390216192000000000
10 195932150519417838363658963697014150610807423633478962380800000000000

List of values

[1, 2, 12, 840, 1663200, 174356582400, 1561112121913344000, 1754317855900734514790400000, 341362923889542287855059017400320000000, 15163751542692044063740921044974247390216192000000000, 195932150519417838363658963697014150610807423633478962380800000000000]