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.

A082430 a(1)=1; for n > 1, a(n) = n*(a(n-1) + a(n-2) + ... + a(2) + a(1)) + 4.

Table of values

n a(n)
1 1
2 6
3 25
4 132
5 824
6 5932
7 48444
8 442916
9 4484524
10 49828044
11 602919332
12 7892762164
13 111156400476
14 1675896499484
15 26934050884564
16 459674468429892
17 8302870086014924
18 158242935756990316
19 3173649989348528004
20 66813683986284800084
21 1473241731897579841852

List of values

[1, 6, 25, 132, 824, 5932, 48444, 442916, 4484524, 49828044, 602919332, 7892762164, 111156400476, 1675896499484, 26934050884564, 459674468429892, 8302870086014924, 158242935756990316, 3173649989348528004, 66813683986284800084, 1473241731897579841852]