n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | 9 |
4 | 35 |
5 | 152 |
6 | 690 |
7 | 3476 |
8 | 18362 |
9 | 105507 |
10 | 633439 |
11 | 4077386 |
12 | 27317322 |
13 | 194202164 |
14 | 1431942154 |
15 | 11117639073 |
16 | 89255122863 |
17 | 750051307896 |
18 | 6500488706254 |
19 | 58693723144324 |
20 | 545325034579386 |
21 | 5258317906940219 |
22 | 52072378163037347 |
23 | 533479904210984930 |
24 | 5603461526474415150 |
[0,0,2,9,35,152,690,3476,18362,105507,633439, 4077386,27317322,194202164,1431942154,11117639073, 89255122863,750051307896,6500488706254, 58693723144324,545325034579386,5258317906940219, 52072378163037347,533479904210984930, 5603461526474415150] |