n | a(n) |
---|---|
2 | 2 |
3 | 12 |
4 | 86 |
5 | 840 |
6 | 11642 |
7 | 227892 |
8 | 6285806 |
9 | 243593040 |
10 | 13262556722 |
11 | 1014466283292 |
12 | 109128015915206 |
13 | 16521353903210520 |
14 | 3524056001906654762 |
15 | 1059868947134489801412 |
16 | 449831067019305308555486 |
17 | 269568708630308018001547680 |
18 | 228228540531327778410439620962 |
[2,12,86,840,11642,227892,6285806,243593040, 13262556722,1014466283292,109128015915206, 16521353903210520,3524056001906654762, 1059868947134489801412,449831067019305308555486, 269568708630308018001547680, 228228540531327778410439620962] |