n | a(n) |
---|---|
1 | 7 |
2 | 15 |
3 | 100 |
4 | 311 |
5 | 1709 |
6 | 7973 |
7 | 37494 |
8 | 207123 |
9 | 1039577 |
10 | 5801570 |
11 | 32328791 |
12 | 180333889 |
13 | 1052960813 |
14 | 6036980691 |
15 | 35461369867 |
16 | 208542506549 |
17 | 1227636956922 |
18 | 7289753229789 |
19 | 43168317190255 |
20 | 256712609867030 |
21 | 1527296174594552 |
[7,15,100,311,1709,7973,37494,207123,1039577, 5801570,32328791,180333889,1052960813,6036980691, 35461369867,208542506549,1227636956922, 7289753229789,43168317190255,256712609867030, 1527296174594552] |