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.

A059371 a(n) = (n-1)! + ((n+1)/2)*a(n-1), a(1)=0.

Table of values

n a(n)
2 1
3 4
4 16
5 72
6 372
7 2208
8 14976
9 115200
10 996480
11 9607680
12 102366720
13 1195568640
14 15193785600
15 208728576000
16 3081867264000
17 48659595264000
18 817953583104000
19 14581909536768000
20 274755150544896000
21 5455208664170496000
22 113825841809670144000

List of values

[1, 4, 16, 72, 372, 2208, 14976, 115200, 996480, 9607680, 102366720, 1195568640, 15193785600, 208728576000, 3081867264000, 48659595264000, 817953583104000, 14581909536768000, 274755150544896000, 5455208664170496000, 113825841809670144000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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