n | a(n) |
---|---|
1 | 6 |
2 | 22 |
3 | 71 |
4 | 218 |
5 | 659 |
6 | 1985 |
7 | 5963 |
8 | 17898 |
9 | 53704 |
10 | 161124 |
11 | 483384 |
12 | 1450164 |
13 | 4350505 |
14 | 13051531 |
15 | 39154610 |
16 | 117463847 |
17 | 301029987 |
18 | 301029987 |
[6,22,71,218,659,1985,5963,17898,53704,161124, 483384,1450164,4350505,13051531,39154610, 117463847,301029987,301029987] |