n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 15 |
4 | 112 |
5 | 239 |
6 | 1785 |
7 | 3809 |
8 | 28448 |
9 | 60705 |
10 | 453383 |
11 | 967471 |
12 | 7225680 |
13 | 15418831 |
14 | 115157497 |
15 | 245733825 |
16 | 1835294272 |
17 | 3916322369 |
18 | 29249550855 |
19 | 62415424079 |
20 | 466157519408 |
21 | 994730462895 |
22 | 7429270759673 |
23 | 15853271982241 |
24 | 118402174635360 |
25 | 252657621252961 |
26 | 1887005523406087 |
[1,7,15,112,239,1785,3809,28448,60705,453383, 967471,7225680,15418831,115157497,245733825, 1835294272,3916322369,29249550855,62415424079, 466157519408,994730462895,7429270759673, 15853271982241,118402174635360,252657621252961, 1887005523406087] |