n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 37 |
4 | 254 |
5 | 1958 |
6 | 16910 |
7 | 162839 |
8 | 1738846 |
9 | 20469724 |
10 | 264061262 |
11 | 3710515665 |
12 | 56463372510 |
13 | 925339183634 |
14 | 16248435935342 |
15 | 304279525428443 |
16 | 6051490582876670 |
17 | 127336699707863032 |
18 | 2825520081496305262 |
19 | 65918580247670293685 |
20 | 1612619297571639402174 |
[1,6,37,254,1958,16910,162839,1738846,20469724, 264061262,3710515665,56463372510,925339183634, 16248435935342,304279525428443,6051490582876670, 127336699707863032,2825520081496305262, 65918580247670293685,1612619297571639402174] |