n | a(n) |
---|---|
8 | 105 |
9 | 1260 |
10 | 9450 |
11 | 56980 |
12 | 302995 |
13 | 1487200 |
14 | 6914908 |
15 | 30950920 |
16 | 134779645 |
17 | 575156036 |
18 | 2417578670 |
19 | 10046531276 |
20 | 41388056231 |
21 | 169371383384 |
22 | 689568172832 |
23 | 2796362035104 |
24 | 11305163394129 |
25 | 45595968007260 |
26 | 183557935474290 |
27 | 737897437077060 |
28 | 2963015460969915 |
[105,1260,9450,56980,302995,1487200,6914908, 30950920,134779645,575156036,2417578670, 10046531276,41388056231,169371383384,689568172832, 2796362035104,11305163394129,45595968007260, 183557935474290,737897437077060,2963015460969915] |