n | a(n) |
---|---|
5 | 2 |
6 | 14 |
7 | 72 |
8 | 330 |
9 | 1430 |
10 | 6006 |
11 | 24752 |
12 | 100776 |
13 | 406980 |
14 | 1634380 |
15 | 6537520 |
16 | 26075790 |
17 | 103791870 |
18 | 412506150 |
19 | 1637618400 |
20 | 6495886320 |
21 | 25751549340 |
22 | 102042235620 |
23 | 404225281200 |
24 | 1600944863700 |
25 | 6339741660252 |
26 | 25103519174844 |
27 | 99399793096352 |
[2,14,72,330,1430,6006,24752,100776,406980, 1634380,6537520,26075790,103791870,412506150, 1637618400,6495886320,25751549340,102042235620, 404225281200,1600944863700,6339741660252, 25103519174844,99399793096352] |