n | a(n) |
---|---|
0 | 1 |
1 | 14 |
2 | 140 |
3 | 1240 |
4 | 10416 |
5 | 85344 |
6 | 690880 |
7 | 5559680 |
8 | 44608256 |
9 | 357389824 |
10 | 2861214720 |
11 | 22898104320 |
12 | 183218384896 |
13 | 1465881288704 |
14 | 11727587164160 |
15 | 93822844764160 |
16 | 750591347982336 |
17 | 6004765143465984 |
18 | 48038258586419200 |
19 | 384306618446643200 |
20 | 3074455146595352576 |
21 | 24595649968853745664 |
[1,14,140,1240,10416,85344,690880,5559680, 44608256,357389824,2861214720,22898104320, 183218384896,1465881288704,11727587164160, 93822844764160,750591347982336,6004765143465984, 48038258586419200,384306618446643200, 3074455146595352576,24595649968853745664] |