n | a(n) |
---|---|
0 | 1 |
1 | 40 |
2 | 819 |
3 | 11440 |
4 | 122589 |
5 | 1074488 |
6 | 8020830 |
7 | 52427192 |
8 | 306189025 |
9 | 1622495952 |
10 | 7895219982 |
11 | 35623107520 |
12 | 150221110689 |
13 | 595982725640 |
14 | 2237008815175 |
15 | 7981961442768 |
16 | 27186526166255 |
17 | 88708246063240 |
18 | 278172606877930 |
[1,40,819,11440,122589,1074488,8020830,52427192, 306189025,1622495952,7895219982,35623107520, 150221110689,595982725640,2237008815175, 7981961442768,27186526166255,88708246063240, 278172606877930] |