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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 24 |
| 5 | 43 |
| 6 | 94 |
| 7 | 193 |
| 8 | 204 |
| 9 | 379 |
| 10 | 405 |
| 11 | 675 |
| 12 | 3811 |
| 13 | 10239 |
| 14 | 26809 |
[0,1,4,24,43,94,193,204,379,405,675,3811,10239, 26809] |