n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 153 |
3 | 2925 |
4 | 58905 |
5 | 1221759 |
6 | 25827165 |
7 | 553270671 |
8 | 11969016345 |
9 | 260887834350 |
10 | 5720645481903 |
11 | 126050526132804 |
12 | 2788629694000605 |
13 | 61902409203193230 |
14 | 1378095785451705375 |
15 | 30756373941461374800 |
16 | 687917389635036844569 |
17 | 15415916972482007401455 |
18 | 346051021610256116115150 |
[1,9,153,2925,58905,1221759,25827165,553270671, 11969016345,260887834350,5720645481903, 126050526132804,2788629694000605, 61902409203193230,1378095785451705375, 30756373941461374800,687917389635036844569, 15415916972482007401455,346051021610256116115150] |