n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 90 |
3 | 735 |
4 | 5535 |
5 | 38619 |
6 | 254949 |
7 | 1604007 |
8 | 9696150 |
9 | 56601345 |
10 | 320465367 |
11 | 1765647477 |
12 | 9492925152 |
13 | 49918029894 |
14 | 257225030010 |
15 | 1301005101360 |
16 | 6467982571350 |
17 | 31645832177880 |
18 | 152542319368640 |
19 | 725110153435170 |
20 | 3401929848645540 |
21 | 15764621508983883 |
22 | 72206209735787754 |
[1,9,90,735,5535,38619,254949,1604007,9696150, 56601345,320465367,1765647477,9492925152, 49918029894,257225030010,1301005101360, 6467982571350,31645832177880,152542319368640, 725110153435170,3401929848645540, 15764621508983883,72206209735787754] |