n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 15 |
3 | 134 |
4 | 1367 |
5 | 15032 |
6 | 173836 |
7 | 2083806 |
8 | 25660383 |
9 | 322666882 |
10 | 4125822703 |
11 | 53482104104 |
12 | 701223274308 |
13 | 9283066366256 |
14 | 123912439591104 |
15 | 1665895096499278 |
16 | 22537232138264271 |
17 | 306586712969384678 |
18 | 4191205834907493725 |
19 | 57548344232637695030 |
20 | 793311718924341065567 |
[1,2,15,134,1367,15032,173836,2083806,25660383, 322666882,4125822703,53482104104,701223274308, 9283066366256,123912439591104,1665895096499278, 22537232138264271,306586712969384678, 4191205834907493725,57548344232637695030, 793311718924341065567] |