n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 10 |
3 | 64 |
4 | 462 |
5 | 3584 |
6 | 29172 |
7 | 245760 |
8 | 2124694 |
9 | 18743296 |
10 | 168043980 |
11 | 1526726656 |
12 | 14025209100 |
13 | 130056978432 |
14 | 1215785268840 |
15 | 11445014102016 |
16 | 108401560073190 |
17 | 1032295389593600 |
18 | 9877854438949980 |
19 | 94927710773575680 |
[1,2,10,64,462,3584,29172,245760,2124694,18743296, 168043980,1526726656,14025209100,130056978432, 1215785268840,11445014102016,108401560073190, 1032295389593600,9877854438949980, 94927710773575680] |