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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 11 |
| 6 | 20 |
| 7 | 38 |
| 8 | 69 |
| 9 | 125 |
| 10 | 225 |
| 11 | 400 |
| 12 | 708 |
| 13 | 1244 |
| 14 | 2176 |
| 15 | 3779 |
| 16 | 6532 |
| 17 | 11229 |
| 18 | 19223 |
| 19 | 32745 |
| 20 | 55555 |
| 21 | 93875 |
| 22 | 158025 |
| 23 | 265038 |
| 24 | 443009 |
| 25 | 738026 |
| 26 | 1225649 |
| 27 | 2029305 |
| 28 | 3350167 |
| 29 | 5515384 |
| 30 | 9055678 |
| 31 | 14830076 |
| 32 | 24226115 |
| 33 | 39480306 |
| 34 | 64190026 |
| 35 | 104130753 |
| 36 | 168556588 |
| 37 | 272268482 |
[1,1,3,5,11,20,38,69,125,225,400,708,1244,2176, 3779,6532,11229,19223,32745,55555,93875,158025, 265038,443009,738026,1225649,2029305,3350167, 5515384,9055678,14830076,24226115,39480306, 64190026,104130753,168556588,272268482] |