n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 108 |
3 | 1458 |
4 | 21060 |
5 | 318087 |
6 | 4960116 |
7 | 79227720 |
8 | 1289516436 |
9 | 21308126895 |
10 | 356506456680 |
11 | 6027199821864 |
12 | 102804351279084 |
13 | 1766931074710515 |
14 | 30570993847594800 |
15 | 532022685332573016 |
16 | 9306598678048938420 |
17 | 163549467160708850910 |
18 | 2886019647490699098588 |
[1,9,108,1458,21060,318087,4960116,79227720, 1289516436,21308126895,356506456680,6027199821864, 102804351279084,1766931074710515, 30570993847594800,532022685332573016, 9306598678048938420,163549467160708850910, 2886019647490699098588] |