n | a(n) |
---|---|
1 | 4 |
2 | 22 |
3 | 136 |
4 | 903 |
5 | 6361 |
6 | 46545 |
7 | 354123 |
8 | 2761106 |
9 | 21925170 |
10 | 176544507 |
11 | 1437663500 |
12 | 11814853749 |
13 | 97837428598 |
14 | 815398741896 |
[4,22,136,903,6361,46545,354123,2761106,21925170, 176544507,1437663500,11814853749,97837428598, 815398741896] |