| n | a(n) |
|---|---|
| 1 | 630 |
| 2 | 749700 |
| 3 | 2162160 |
| 4 | 34283340 |
| 5 | 76576500 |
| 6 | 105887628 |
| 7 | 330360660 |
| 8 | 865924920 |
| 9 | 2456409186 |
| 10 | 17246794950 |
| 11 | 35051708835 |
| 12 | 999302826060 |
| 13 | 3153804823260 |
| 14 | 161708540211900 |
| 15 | 1153195485992550 |
| 16 | 1330786621788263640 |
[630,749700,2162160,34283340,76576500,105887628, 330360660,865924920,2456409186,17246794950, 35051708835,999302826060,3153804823260, 161708540211900,1153195485992550, 1330786621788263640] |