n | a(n) |
---|---|
1 | 3 |
2 | 15 |
3 | 99 |
4 | 495 |
5 | 2079 |
6 | 4455 |
7 | 36855 |
8 | 70875 |
9 | 280665 |
10 | 1393119 |
11 | 4179357 |
12 | 12931731 |
13 | 32417901 |
14 | 161026623 |
15 | 514966329 |
16 | 1490692005 |
[3,15,99,495,2079,4455,36855,70875,280665,1393119, 4179357,12931731,32417901,161026623,514966329, 1490692005] |