n | a(n) |
---|---|
1 | 0 |
2 | 48 |
3 | 288 |
4 | 1680 |
5 | 9792 |
6 | 57072 |
7 | 332640 |
8 | 1938768 |
9 | 11299968 |
10 | 65861040 |
11 | 383866272 |
12 | 2237336592 |
13 | 13040153280 |
14 | 76003583088 |
15 | 442981345248 |
16 | 2581884488400 |
17 | 15048325585152 |
18 | 87708069022512 |
19 | 511200088549920 |
20 | 2979492462277008 |
21 | 17365754685112128 |
22 | 101215035648395760 |
[0,48,288,1680,9792,57072,332640,1938768,11299968, 65861040,383866272,2237336592,13040153280, 76003583088,442981345248,2581884488400, 15048325585152,87708069022512,511200088549920, 2979492462277008,17365754685112128, 101215035648395760] |