n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 25 |
3 | 148 |
4 | 865 |
5 | 5044 |
6 | 29401 |
7 | 171364 |
8 | 998785 |
9 | 5821348 |
10 | 33929305 |
11 | 197754484 |
12 | 1152597601 |
13 | 6717831124 |
14 | 39154389145 |
15 | 228208503748 |
16 | 1330096633345 |
17 | 7752371296324 |
18 | 45184131144601 |
19 | 263352415571284 |
20 | 1534930362283105 |
21 | 8946229758127348 |
22 | 52142448186480985 |
[1,4,25,148,865,5044,29401,171364,998785,5821348, 33929305,197754484,1152597601,6717831124, 39154389145,228208503748,1330096633345, 7752371296324,45184131144601,263352415571284, 1534930362283105,8946229758127348, 52142448186480985] |