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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 54 |
| 3 | 640 |
| 4 | 9375 |
| 5 | 163296 |
| 6 | 3294172 |
| 7 | 75497472 |
| 8 | 1937102445 |
| 9 | 55000000000 |
| 10 | 1711870023666 |
| 11 | 57954652913664 |
| 12 | 2120125746145771 |
| 13 | 83340051191685120 |
| 14 | 3503151123046875000 |
| 15 | 156797324626531188736 |
| 16 | 7445162356977030877593 |
[1,6,54,640,9375,163296,3294172,75497472, 1937102445,55000000000,1711870023666, 57954652913664,2120125746145771,83340051191685120, 3503151123046875000,156797324626531188736, 7445162356977030877593] |