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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 100 |
| 3 | 240 |
| 4 | 576 |
| 5 | 1872 |
| 6 | 6084 |
| 7 | 18096 |
| 8 | 53824 |
| 9 | 165648 |
| 10 | 509796 |
| 11 | 1542240 |
| 12 | 4665600 |
| 13 | 14251680 |
| 14 | 43533604 |
| 15 | 132223920 |
| 16 | 401601600 |
| 17 | 1223922960 |
| 18 | 3730033476 |
| 19 | 11344617648 |
| 20 | 34503805504 |
| 21 | 105068389776 |
| 22 | 319946347044 |
| 23 | 973567075392 |
| 24 | 2962474361856 |
[10,100,240,576,1872,6084,18096,53824,165648, 509796,1542240,4665600,14251680,43533604, 132223920,401601600,1223922960,3730033476, 11344617648,34503805504,105068389776,319946347044, 973567075392,2962474361856] |