n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 4 |
4 | 15 |
5 | 24 |
6 | 124 |
7 | 192 |
8 | 1020 |
9 | 1920 |
10 | 12264 |
11 | 23040 |
12 | 159666 |
13 | 322560 |
14 | 2555280 |
15 | 5041344 |
16 | 40893840 |
17 | 90744192 |
18 | 761260368 |
19 | 1814883840 |
20 | 15732804296 |
21 | 38900010240 |
22 | 377587663200 |
23 | 933600245760 |
24 | 9087075973248 |
25 | 23520702965760 |
26 | 254438142416640 |
[1,1,3,4,15,24,124,192,1020,1920,12264,23040, 159666,322560,2555280,5041344,40893840,90744192, 761260368,1814883840,15732804296,38900010240, 377587663200,933600245760,9087075973248, 23520702965760,254438142416640] |