n | a(n) |
---|---|
2 | 1 |
3 | 8 |
4 | 49 |
5 | 276 |
6 | 1504 |
7 | 8082 |
8 | 43193 |
9 | 230536 |
10 | 1231484 |
11 | 6591350 |
12 | 35369380 |
13 | 190329098 |
14 | 1027180798 |
15 | 5559635866 |
16 | 30176648513 |
17 | 164237973028 |
18 | 896188159820 |
19 | 4902187071922 |
20 | 26877397858264 |
21 | 147684225578318 |
22 | 813159429830590 |
[1,8,49,276,1504,8082,43193,230536,1231484, 6591350,35369380,190329098,1027180798,5559635866, 30176648513,164237973028,896188159820, 4902187071922,26877397858264,147684225578318, 813159429830590] |