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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 6 |
| 4 | 8 |
| 5 | 13 |
| 6 | 23 |
| 7 | 44 |
| 8 | 48 |
| 9 | 72 |
| 10 | 73 |
| 11 | 231 |
| 12 | 337 |
| 13 | 396 |
| 14 | 503 |
| 15 | 1062 |
| 16 | 2816 |
| 17 | 5304 |
| 18 | 16767 |
| 19 | 27059 |
[0,1,6,8,13,23,44,48,72,73,231,337,396,503,1062, 2816,5304,16767,27059] |