n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 21 |
4 | 193 |
5 | 986 |
6 | 3151 |
7 | 4137 |
8 | 152083 |
9 | 156220 |
10 | 620743 |
11 | 3259935 |
12 | 29960158 |
13 | 153060725 |
14 | 489142333 |
15 | 642203058 |
16 | 23608452421 |
17 | 24250655479 |
18 | 96360418858 |
19 | 506052749769 |
20 | 4650835166779 |
21 | 23760228583664 |
22 | 75931520917771 |
23 | 99691749501435 |
24 | 3664834502969431 |
[1,1,4,21,193,986,3151,4137,152083,156220,620743, 3259935,29960158,153060725,489142333,642203058, 23608452421,24250655479,96360418858,506052749769, 4650835166779,23760228583664,75931520917771, 99691749501435,3664834502969431] |