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| n | a(n) |
|---|---|
| 1 | 40 |
| 2 | 1600 |
| 3 | 20550 |
| 4 | 241087 |
| 5 | 3210938 |
| 6 | 39698733 |
| 7 | 474552171 |
| 8 | 5755114104 |
| 9 | 69609375870 |
| 10 | 836438494500 |
| 11 | 10061632597765 |
| 12 | 121113950382680 |
| 13 | 1456404024212421 |
| 14 | 17511407393280395 |
| 15 | 210603058946646014 |
| 16 | 2532582001420108242 |
[40,1600,20550,241087,3210938,39698733,474552171, 5755114104,69609375870,836438494500, 10061632597765,121113950382680,1456404024212421, 17511407393280395,210603058946646014, 2532582001420108242] |