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.

A142987 a(1) = 1, a(2) = 10, a(n+2) = 10*a(n+1) + (n + 1)*(n + 2)*a(n).

Table of values

n a(n)
1 1
2 10
3 106
4 1180
5 13920
6 174600
7 2330640
8 33084000
9 498646080
10 7964020800
11 134491276800
12 2396163513600
13 44942274316800
14 885524502643200
15 18293122632960000
16 395457106963968000
17 8930300425804800000

List of values

[1, 10, 106, 1180, 13920, 174600, 2330640, 33084000, 498646080, 7964020800, 134491276800, 2396163513600, 44942274316800, 885524502643200, 18293122632960000, 395457106963968000, 8930300425804800000]