n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 16 |
5 | 89 |
6 | 579 |
7 | 3989 |
8 | 28630 |
9 | 210865 |
10 | 1584308 |
11 | 12091902 |
12 | 93483120 |
13 | 730503054 |
14 | 5760438853 |
15 | 45780146521 |
16 | 366304396662 |
17 | 2948412461685 |
18 | 23857049238752 |
19 | 193944769559906 |
20 | 1583294537879106 |
21 | 12974430494985262 |
22 | 106685110047676402 |
[1,2,4,16,89,579,3989,28630,210865,1584308, 12091902,93483120,730503054,5760438853, 45780146521,366304396662,2948412461685, 23857049238752,193944769559906,1583294537879106, 12974430494985262,106685110047676402] |