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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 10 |
| 6 | 11 |
| 7 | 27 |
| 8 | 35 |
| 9 | 383 |
| 10 | 628 |
| 11 | 719 |
| 12 | 1397 |
| 13 | 2001 |
| 14 | 2621 |
| 15 | 6456 |
| 16 | 19304 |
| 17 | 38507 |
| 18 | 46454 |
| 19 | 95975 |
[0,2,4,6,10,11,27,35,383,628,719,1397,2001,2621, 6456,19304,38507,46454,95975] |