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| n | a(n) |
|---|---|
| 3 | 1 |
| 4 | 3 |
| 5 | 13 |
| 6 | 38 |
| 7 | 97 |
| 8 | 217 |
| 9 | 453 |
| 10 | 868 |
| 11 | 1585 |
| 12 | 2756 |
| 13 | 4606 |
| 14 | 7440 |
| 15 | 11679 |
| 16 | 17849 |
| 17 | 26674 |
| 18 | 39060 |
| 19 | 56144 |
| 20 | 79387 |
| 21 | 110575 |
| 22 | 151904 |
| 23 | 206063 |
| 24 | 276332 |
| 25 | 366561 |
| 26 | 481484 |
| 27 | 626586 |
| 28 | 808431 |
| 29 | 1034636 |
| 30 | 1314242 |
| 31 | 1657500 |
| 32 | 2076601 |
| 33 | 2585262 |
| 34 | 3199504 |
| 35 | 3937370 |
| 36 | 4819788 |
[1,3,13,38,97,217,453,868,1585,2756,4606,7440, 11679,17849,26674,39060,56144,79387,110575,151904, 206063,276332,366561,481484,626586,808431,1034636, 1314242,1657500,2076601,2585262,3199504,3937370, 4819788] |