n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 65 |
4 | 1020 |
5 | 17915 |
6 | 336881 |
7 | 6634391 |
8 | 135085305 |
9 | 2820748975 |
10 | 60074608660 |
11 | 1299896748546 |
12 | 28496343865808 |
13 | 631545920570632 |
14 | 14126673078922850 |
15 | 318514279669755470 |
16 | 7231331734648562366 |
17 | 165172699475903928921 |
18 | 3793005825337785580290 |
19 | 87518313783310367308770 |
[1,1,5,65,1020,17915,336881,6634391,135085305, 2820748975,60074608660,1299896748546, 28496343865808,631545920570632,14126673078922850, 318514279669755470,7231331734648562366, 165172699475903928921,3793005825337785580290, 87518313783310367308770] |