n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 5 |
4 | 31 |
5 | 248 |
6 | 2382 |
7 | 27233 |
8 | 359800 |
9 | 5364193 |
10 | 88622485 |
11 | 1602171855 |
12 | 31410476113 |
13 | 663240471075 |
14 | 15001046054183 |
15 | 361775504849332 |
16 | 9266474332849318 |
17 | 251217335356943672 |
18 | 7186461542458525108 |
19 | 216332059500870350414 |
20 | 6835872042063656823802 |
[0,1,5,31,248,2382,27233,359800,5364193,88622485, 1602171855,31410476113,663240471075, 15001046054183,361775504849332,9266474332849318, 251217335356943672,7186461542458525108, 216332059500870350414,6835872042063656823802] |