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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 13 |
| 4 | 19 |
| 5 | 29 |
| 6 | 43 |
| 7 | 65 |
| 8 | 259 |
| 9 | 871 |
| 10 | 8845 |
| 11 | 26743 |
| 12 | 57505 |
| 13 | 98471 |
| 14 | 106891 |
[0,1,13,19,29,43,65,259,871,8845,26743,57505, 98471,106891] |