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| n | a(n) |
|---|---|
| 1 | 2176 |
| 2 | 253312 |
| 3 | 7946432 |
| 4 | 394724320 |
| 5 | 15491352288 |
| 6 | 686342587904 |
| 7 | 28533024476512 |
| 8 | 1225810619871552 |
| 9 | 51768892508647296 |
| 10 | 2205828537779532832 |
| 11 | 93555571372805665280 |
| 12 | 3977486749634600724032 |
| 13 | 168891302791156877237312 |
[2176,253312,7946432,394724320,15491352288, 686342587904,28533024476512,1225810619871552, 51768892508647296,2205828537779532832, 93555571372805665280,3977486749634600724032, 168891302791156877237312] |