n | a(n) |
---|---|
1 | 1 |
2 | 511 |
3 | 19682 |
4 | 261632 |
5 | 1953124 |
6 | 10057502 |
7 | 40353606 |
8 | 133955584 |
9 | 387400806 |
10 | 998046364 |
11 | 2357947690 |
12 | 5149441024 |
13 | 10604499372 |
14 | 20620692666 |
15 | 38441386568 |
16 | 68585259008 |
17 | 118587876496 |
18 | 197961811866 |
19 | 322687697778 |
20 | 510999738368 |
[1,511,19682,261632,1953124,10057502,40353606, 133955584,387400806,998046364,2357947690, 5149441024,10604499372,20620692666,38441386568, 68585259008,118587876496,197961811866, 322687697778,510999738368] |