n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 38 |
3 | 189 |
4 | 909 |
5 | 4368 |
6 | 21093 |
7 | 102051 |
8 | 493702 |
9 | 2387689 |
10 | 11546425 |
11 | 55837024 |
12 | 270025769 |
13 | 1305841103 |
14 | 6315023830 |
15 | 30539305893 |
16 | 147687325509 |
17 | 714212301776 |
18 | 3453913488845 |
19 | 16703042620715 |
20 | 80775512179990 |
21 | 390628431683601 |
22 | 1889069687788593 |
23 | 9135495517900480 |
[1,7,38,189,909,4368,21093,102051,493702,2387689, 11546425,55837024,270025769,1305841103,6315023830, 30539305893,147687325509,714212301776, 3453913488845,16703042620715,80775512179990, 390628431683601,1889069687788593,9135495517900480] |