n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 44 |
4 | 394 |
5 | 3948 |
6 | 42364 |
7 | 476120 |
8 | 5532714 |
9 | 65935804 |
10 | 801461012 |
11 | 9897836520 |
12 | 123840983812 |
13 | 1566487308344 |
14 | 19999112293944 |
15 | 257365488659376 |
16 | 3334967582746218 |
17 | 43477505482249692 |
18 | 569854228738577572 |
[1,2,6,44,394,3948,42364,476120,5532714,65935804, 801461012,9897836520,123840983812,1566487308344, 19999112293944,257365488659376,3334967582746218, 43477505482249692,569854228738577572] |