n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 16 |
4 | 137 |
5 | 1826 |
6 | 37777 |
7 | 1214256 |
8 | 60075185 |
9 | 4484316358 |
10 | 493489876721 |
11 | 78456654767756 |
12 | 17735173202222665 |
13 | 5630684018989523274 |
14 | 2486496790249207981169 |
15 | 1515191575312017416011456 |
[1,1,3,16,137,1826,37777,1214256,60075185, 4484316358,493489876721,78456654767756, 17735173202222665,5630684018989523274, 2486496790249207981169,1515191575312017416011456] |