n | a(n) |
---|---|
1 | 5 |
2 | 16 |
3 | 54 |
4 | 648 |
5 | 2850 |
6 | 20882 |
7 | 159324 |
8 | 1041908 |
9 | 7459468 |
10 | 53904306 |
11 | 375940431 |
12 | 2678988639 |
13 | 19089395160 |
14 | 135035259385 |
15 | 959911426013 |
16 | 6820922367039 |
17 | 48396544732963 |
18 | 343770481230580 |
19 | 2441462845433685 |
20 | 17334264880163647 |
[5,16,54,648,2850,20882,159324,1041908,7459468, 53904306,375940431,2678988639,19089395160, 135035259385,959911426013,6820922367039, 48396544732963,343770481230580,2441462845433685, 17334264880163647] |