n | a(n) |
---|---|
1 | 0 |
2 | 50 |
3 | 314 |
4 | 2500 |
5 | 19014 |
6 | 145800 |
7 | 1116400 |
8 | 8550512 |
9 | 65485386 |
10 | 501533796 |
11 | 3841097940 |
12 | 29417832750 |
13 | 225302467392 |
14 | 1725524876860 |
15 | 13215284016064 |
16 | 101211946587176 |
17 | 775152325067630 |
18 | 5936662096954472 |
19 | 45467136862793520 |
[0,50,314,2500,19014,145800,1116400,8550512, 65485386,501533796,3841097940,29417832750, 225302467392,1725524876860,13215284016064, 101211946587176,775152325067630,5936662096954472, 45467136862793520] |