n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 9 |
5 | 29 |
6 | 105 |
7 | 431 |
8 | 1969 |
9 | 9785 |
10 | 52145 |
11 | 296155 |
12 | 1787385 |
13 | 11428949 |
14 | 77124569 |
15 | 546987143 |
16 | 4062341601 |
17 | 31502219889 |
18 | 254500383457 |
19 | 2137863653811 |
20 | 18639586581097 |
21 | 168387382189709 |
22 | 1573599537048265 |
23 | 15189509662516063 |
24 | 151243491212611217 |
25 | 1551565158004180137 |
[1,1,1,3,9,29,105,431,1969,9785,52145,296155, 1787385,11428949,77124569,546987143,4062341601, 31502219889,254500383457,2137863653811, 18639586581097,168387382189709,1573599537048265, 15189509662516063,151243491212611217, 1551565158004180137] |