n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 54 |
3 | 269 |
4 | 1254 |
5 | 5642 |
6 | 24828 |
7 | 107613 |
8 | 461318 |
9 | 1961102 |
10 | 8282196 |
11 | 34792914 |
12 | 145527004 |
13 | 606473844 |
14 | 2519619640 |
15 | 10440010845 |
16 | 43158028230 |
17 | 178049440230 |
18 | 733229991780 |
19 | 3014712182790 |
20 | 12377406450420 |
21 | 50751988872780 |
22 | 207859022097480 |
23 | 850399040956530 |
24 | 3475797671194524 |
[1,9,54,269,1254,5642,24828,107613,461318,1961102, 8282196,34792914,145527004,606473844,2519619640, 10440010845,43158028230,178049440230,733229991780, 3014712182790,12377406450420,50751988872780, 207859022097480,850399040956530,3475797671194524] |