n | a(n) |
---|---|
1 | 7 |
2 | 49 |
3 | 241 |
4 | 928 |
5 | 3115 |
6 | 9919 |
7 | 31899 |
8 | 106838 |
9 | 372791 |
10 | 1333858 |
11 | 4817747 |
12 | 17407255 |
13 | 62752228 |
14 | 225884852 |
15 | 813221202 |
16 | 2931336019 |
17 | 10582353096 |
18 | 38251831384 |
19 | 138386374911 |
20 | 500895790541 |
21 | 1813490035610 |
22 | 6566735544675 |
23 | 23781203864410 |
[7,49,241,928,3115,9919,31899,106838,372791, 1333858,4817747,17407255,62752228,225884852, 813221202,2931336019,10582353096,38251831384, 138386374911,500895790541,1813490035610, 6566735544675,23781203864410] |