n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 41 |
4 | 220 |
5 | 1212 |
6 | 6803 |
7 | 38691 |
8 | 222196 |
9 | 1285610 |
10 | 7482718 |
11 | 43762754 |
12 | 256972507 |
13 | 1514020484 |
14 | 8945944435 |
15 | 52990732161 |
16 | 314568593860 |
17 | 1870939233546 |
18 | 11146516959176 |
19 | 66508200091575 |
20 | 397375460647690 |
21 | 2377167144881136 |
22 | 14236462650026064 |
23 | 85346464443885086 |
[1,2,8,41,220,1212,6803,38691,222196,1285610, 7482718,43762754,256972507,1514020484,8945944435, 52990732161,314568593860,1870939233546, 11146516959176,66508200091575,397375460647690, 2377167144881136,14236462650026064, 85346464443885086] |