n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 12 |
5 | 72 |
6 | 513 |
7 | 4531 |
8 | 68662 |
9 | 1429824 |
10 | 40840428 |
11 | 1747979822 |
12 | 106711196102 |
13 | 9237029528023 |
14 | 1158315077977449 |
15 | 208422835867809541 |
16 | 53674442198900292691 |
17 | 19878424340459715152560 |
18 | 10569643478952360023168707 |
[1,2,5,12,72,513,4531,68662,1429824,40840428, 1747979822,106711196102,9237029528023, 1158315077977449,208422835867809541, 53674442198900292691,19878424340459715152560, 10569643478952360023168707] |