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| n | a(n) |
|---|---|
| 9 | 3 |
| 10 | 18 |
| 11 | 78 |
| 12 | 264 |
| 13 | 786 |
| 14 | 2097 |
| 15 | 5179 |
| 16 | 11998 |
| 17 | 26400 |
| 18 | 55593 |
| 19 | 112814 |
| 20 | 221639 |
| 21 | 423318 |
| 22 | 788518 |
| 23 | 1436302 |
| 24 | 2564135 |
| 25 | 4494967 |
| 26 | 7750068 |
| 27 | 13160903 |
| 28 | 22039386 |
| 29 | 36434095 |
| 30 | 59514365 |
| 31 | 96139570 |
| 32 | 153699716 |
| 33 | 243345157 |
| 34 | 381779187 |
| 35 | 593848668 |
| 36 | 916277405 |
| 37 | 1403004758 |
| 38 | 2132797015 |
[3,18,78,264,786,2097,5179,11998,26400,55593, 112814,221639,423318,788518,1436302,2564135, 4494967,7750068,13160903,22039386,36434095, 59514365,96139570,153699716,243345157,381779187, 593848668,916277405,1403004758,2132797015] |