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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 228 |
| 3 | 308 |
| 4 | 5289 |
| 5 | 543900 |
| 6 | 706180 |
| 7 | 1244791 |
| 8 | 51146940 |
| 9 | 76205040 |
| 10 | 114835995824 |
| 11 | 106293119818725 |
| 12 | 222582887719576 |
| 13 | 3520995103197240 |
| 14 | 17847666535865852 |
| 15 | 18611596834765355 |
| 16 | 106620725307595884 |
| 17 | 269840171418387336 |
| 18 | 357849299891217865 |
[3,228,308,5289,543900,706180,1244791,51146940, 76205040,114835995824,106293119818725, 222582887719576,3520995103197240, 17847666535865852,18611596834765355, 106620725307595884,269840171418387336, 357849299891217865] |