n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 7 |
5 | 31 |
6 | 184 |
7 | 1351 |
8 | 12524 |
9 | 146468 |
10 | 2177570 |
11 | 41374407 |
12 | 1008220289 |
13 | 31559446774 |
14 | 1269310589336 |
15 | 65562045668340 |
16 | 4345161435996517 |
[1,1,1,2,7,31,184,1351,12524,146468,2177570, 41374407,1008220289,31559446774,1269310589336, 65562045668340,4345161435996517] |