n | a(n) |
---|---|
1 | 8 |
2 | 21 |
3 | 153 |
4 | 865 |
5 | 4665 |
6 | 25556 |
7 | 144847 |
8 | 817539 |
9 | 4574717 |
10 | 25577718 |
11 | 143371820 |
12 | 804082832 |
13 | 4506873305 |
14 | 25254564785 |
15 | 141534685147 |
16 | 793277267583 |
17 | 4446076119277 |
18 | 24918173471356 |
19 | 139655004825056 |
20 | 782709245520654 |
[8,21,153,865,4665,25556,144847,817539,4574717, 25577718,143371820,804082832,4506873305, 25254564785,141534685147,793277267583, 4446076119277,24918173471356,139655004825056, 782709245520654] |