n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 7 |
3 | 43 |
4 | 265 |
5 | 1633 |
6 | 10063 |
7 | 62011 |
8 | 382129 |
9 | 2354785 |
10 | 14510839 |
11 | 89419819 |
12 | 551029753 |
13 | 3395598337 |
14 | 20924619775 |
15 | 128943316987 |
16 | 794584521697 |
17 | 4896450447169 |
18 | 30173287204711 |
19 | 185936173675435 |
20 | 1145790329257321 |
[1,1,7,43,265,1633,10063,62011,382129,2354785, 14510839,89419819,551029753,3395598337, 20924619775,128943316987,794584521697, 4896450447169,30173287204711,185936173675435, 1145790329257321] |