n | a(n) |
---|---|
3 | 1 |
4 | 14 |
5 | 115 |
6 | 660 |
7 | 3805 |
8 | 20520 |
9 | 109779 |
10 | 551774 |
11 | 2921313 |
12 | 14482320 |
13 | 71576096 |
14 | 349292330 |
15 | 1804636693 |
16 | 8745745676 |
17 | 42107640345 |
18 | 203559063050 |
19 | 1040682784201 |
20 | 5002217935308 |
21 | 23823427871991 |
22 | 114772726273528 |
23 | 583453635620973 |
24 | 2795288971320092 |
25 | 13246283464422706 |
26 | 63736681240596050 |
[1,14,115,660,3805,20520,109779,551774,2921313, 14482320,71576096,349292330,1804636693,8745745676, 42107640345,203559063050,1040682784201, 5002217935308,23823427871991,114772726273528, 583453635620973,2795288971320092, 13246283464422706,63736681240596050] |