n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 14 |
3 | 79 |
4 | 482 |
5 | 3088 |
6 | 20502 |
7 | 139882 |
8 | 975084 |
9 | 6915354 |
10 | 49742974 |
11 | 362054512 |
12 | 2661657346 |
13 | 19735338206 |
14 | 147418892116 |
15 | 1108339796742 |
16 | 8380510594346 |
17 | 63689530713888 |
18 | 486218971691294 |
19 | 3727035449588930 |
20 | 28674306373680492 |
[1,3,14,79,482,3088,20502,139882,975084,6915354, 49742974,362054512,2661657346,19735338206, 147418892116,1108339796742,8380510594346, 63689530713888,486218971691294,3727035449588930, 28674306373680492] |