n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 23 |
4 | 121 |
5 | 713 |
6 | 4487 |
7 | 29374 |
8 | 197896 |
9 | 1363770 |
10 | 9570226 |
11 | 68156319 |
12 | 491347930 |
13 | 3578755113 |
14 | 26295477075 |
15 | 194677798065 |
16 | 1450833583380 |
17 | 10875262975274 |
18 | 81940144475296 |
19 | 620223662770067 |
20 | 4714016885082577 |
21 | 35962615212212852 |
22 | 275282740190267268 |
23 | 2113705107245941938 |
[1,1,5,23,121,713,4487,29374,197896,1363770, 9570226,68156319,491347930,3578755113,26295477075, 194677798065,1450833583380,10875262975274, 81940144475296,620223662770067,4714016885082577, 35962615212212852,275282740190267268, 2113705107245941938] |