| n | a(n) |
|---|---|
| 1 | 4616 |
| 2 | 190308 |
| 3 | 339952 |
| 4 | 721864 |
| 5 | 1820904 |
| 6 | 5006296 |
| 7 | 13435392 |
| 8 | 35632192 |
| 9 | 95276272 |
| 10 | 261736272 |
| 11 | 709324400 |
| 12 | 1927403116 |
| 13 | 5292526288 |
| 14 | 14866077768 |
| 15 | 40973803912 |
| 16 | 112866192572 |
| 17 | 314639453512 |
| 18 | 897120499588 |
| 19 | 2505530846832 |
| 20 | 6976518689796 |
[4616,190308,339952,721864,1820904,5006296, 13435392,35632192,95276272,261736272,709324400, 1927403116,5292526288,14866077768,40973803912, 112866192572,314639453512,897120499588, 2505530846832,6976518689796] |