n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 10 |
4 | 70 |
5 | 916 |
6 | 16636 |
7 | 494824 |
8 | 20486432 |
9 | 1320568624 |
10 | 119526633136 |
11 | 16466317431136 |
12 | 3210471529800448 |
13 | 940911157770908416 |
14 | 392559353168479443584 |
15 | 244017910517578226511616 |
16 | 216775189886094655708439296 |
17 | 284778404550532041821957456896 |
18 | 536018349047631899870416803595264 |
[1,1,2,10,70,916,16636,494824,20486432,1320568624, 119526633136,16466317431136,3210471529800448, 940911157770908416,392559353168479443584, 244017910517578226511616, 216775189886094655708439296, 284778404550532041821957456896, 536018349047631899870416803595264] |