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| n | a(n) |
|---|---|
| 1 | 23400 |
| 2 | 159688 |
| 3 | 1079680 |
| 4 | 7216512 |
| 5 | 47799488 |
| 6 | 319477960 |
| 7 | 2132283592 |
| 8 | 14219886016 |
| 9 | 94826520320 |
| 10 | 632600369216 |
| 11 | 4219646774184 |
| 12 | 28145459043464 |
| 13 | 187735748042496 |
| 14 | 1252250358585088 |
| 15 | 8352796888611456 |
| 16 | 55715038868965512 |
| 17 | 371632331032444552 |
[23400,159688,1079680,7216512,47799488,319477960, 2132283592,14219886016,94826520320,632600369216, 4219646774184,28145459043464,187735748042496, 1252250358585088,8352796888611456, 55715038868965512,371632331032444552] |