n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 7 |
4 | 31 |
5 | 76 |
6 | 365 |
7 | 920 |
8 | 4691 |
9 | 12695 |
10 | 65708 |
11 | 184458 |
12 | 967195 |
13 | 2798734 |
14 | 14837523 |
15 | 43829052 |
16 | 234029147 |
17 | 703643181 |
[1,4,7,31,76,365,920,4691,12695,65708,184458, 967195,2798734,14837523,43829052,234029147, 703643181] |