n | a(n) |
---|---|
1 | 400 |
2 | 2457 |
3 | 13097 |
4 | 63631 |
5 | 291165 |
6 | 1280447 |
7 | 5480917 |
8 | 23024631 |
9 | 95448605 |
10 | 391939087 |
11 | 1598379237 |
12 | 6485763431 |
13 | 26220548845 |
14 | 105716192127 |
15 | 425369781557 |
16 | 1709000211031 |
17 | 6858576189885 |
18 | 27502054979567 |
19 | 110211518943877 |
[400,2457,13097,63631,291165,1280447,5480917, 23024631,95448605,391939087,1598379237,6485763431, 26220548845,105716192127,425369781557, 1709000211031,6858576189885,27502054979567, 110211518943877] |