n | a(n) |
---|---|
1 | 7 |
2 | 49 |
3 | 230 |
4 | 1011 |
5 | 4705 |
6 | 22412 |
7 | 105936 |
8 | 497727 |
9 | 2339729 |
10 | 11013295 |
11 | 51846666 |
12 | 244013222 |
13 | 1148355280 |
14 | 5404522372 |
15 | 25435928407 |
16 | 119711433603 |
17 | 563405871570 |
18 | 2651594982047 |
19 | 12479394172896 |
20 | 58732688555813 |
21 | 276417903263710 |
[7,49,230,1011,4705,22412,105936,497727,2339729, 11013295,51846666,244013222,1148355280,5404522372, 25435928407,119711433603,563405871570, 2651594982047,12479394172896,58732688555813, 276417903263710] |