n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 24 |
5 | 77 |
6 | 256 |
7 | 874 |
8 | 3045 |
9 | 10780 |
10 | 38674 |
11 | 140268 |
12 | 513350 |
13 | 1892875 |
14 | 7023562 |
15 | 26200182 |
16 | 98182666 |
17 | 369393466 |
18 | 1394632365 |
19 | 5281753216 |
20 | 20058841004 |
21 | 76370762838 |
22 | 291436246116 |
23 | 1114474774102 |
24 | 4270050059100 |
25 | 16389518073023 |
26 | 63010289558056 |
27 | 242614318886286 |
[0,1,3,8,24,77,256,874,3045,10780,38674,140268, 513350,1892875,7023562,26200182,98182666, 369393466,1394632365,5281753216,20058841004, 76370762838,291436246116,1114474774102, 4270050059100,16389518073023,63010289558056, 242614318886286] |