n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 14 |
4 | 67 |
5 | 343 |
6 | 2151 |
7 | 14900 |
8 | 119259 |
9 | 1055520 |
10 | 10465854 |
11 | 73562956 |
12 | 592088950 |
13 | 4560084092 |
14 | 37322365393 |
15 | 303133205967 |
16 | 2640424710926 |
17 | 22786686453050 |
18 | 210764523790244 |
19 | 1891228958070987 |
20 | 18197644702881767 |
21 | 155143878113188799 |
22 | 1411297482751989322 |
[1,1,4,14,67,343,2151,14900,119259,1055520, 10465854,73562956,592088950,4560084092, 37322365393,303133205967,2640424710926, 22786686453050,210764523790244,1891228958070987, 18197644702881767,155143878113188799, 1411297482751989322] |