n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 9 |
5 | 24 |
6 | 76 |
7 | 279 |
8 | 1156 |
9 | 5296 |
10 | 26443 |
11 | 142418 |
12 | 820988 |
13 | 5034585 |
14 | 32679022 |
15 | 223578344 |
16 | 1606536889 |
17 | 12086679036 |
18 | 94951548840 |
19 | 777028354999 |
20 | 6609770560056 |
21 | 58333928795428 |
22 | 533203744952179 |
23 | 5039919483399502 |
24 | 49191925338483848 |
25 | 495150794633289137 |
[0,1,2,4,9,24,76,279,1156,5296,26443,142418, 820988,5034585,32679022,223578344,1606536889, 12086679036,94951548840,777028354999, 6609770560056,58333928795428,533203744952179, 5039919483399502,49191925338483848, 495150794633289137] |