n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 12 |
4 | 124 |
5 | 1800 |
6 | 33654 |
7 | 769664 |
8 | 20811960 |
9 | 649520640 |
10 | 22977857130 |
11 | 908626363392 |
12 | 39716055829044 |
13 | 1901448823572480 |
14 | 98954978833285470 |
15 | 5562010902732226560 |
16 | 335794917699707735664 |
17 | 21671616664285622599680 |
18 | 1488915133606275294428370 |
19 | 108495148653912606138040320 |
[1,2,12,124,1800,33654,769664,20811960,649520640, 22977857130,908626363392,39716055829044, 1901448823572480,98954978833285470, 5562010902732226560,335794917699707735664, 21671616664285622599680,1488915133606275294428370, 108495148653912606138040320] |