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| n | a(n) |
|---|---|
| 1 | 24 |
| 2 | 104 |
| 3 | 472 |
| 4 | 1664 |
| 5 | 6848 |
| 6 | 27272 |
| 7 | 108128 |
| 8 | 431656 |
| 9 | 1719312 |
| 10 | 6845968 |
| 11 | 27282352 |
| 12 | 108671048 |
| 13 | 432902384 |
| 14 | 1724605424 |
| 15 | 6870205712 |
| 16 | 27368517688 |
| 17 | 109028322640 |
| 18 | 434332786176 |
| 19 | 1730241699608 |
| 20 | 6892737739416 |
| 21 | 27458456022120 |
| 22 | 109385692125040 |
[24,104,472,1664,6848,27272,108128,431656,1719312, 6845968,27282352,108671048,432902384,1724605424, 6870205712,27368517688,109028322640,434332786176, 1730241699608,6892737739416,27458456022120, 109385692125040] |