| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 3 |
| 3 | 1 |
| 4 | 10 |
| 5 | 7 |
| 6 | 29 |
| 7 | 28 |
| 8 | 81 |
| 9 | 93 |
| 10 | 222 |
| 11 | 283 |
| 12 | 601 |
| 13 | 820 |
| 14 | 1613 |
| 15 | 2305 |
| 16 | 4302 |
| 17 | 6351 |
| 18 | 11421 |
| 19 | 17260 |
| 20 | 30217 |
| 21 | 46453 |
| 22 | 79742 |
| 23 | 124147 |
| 24 | 210033 |
| 25 | 330084 |
| 26 | 552405 |
| 27 | 874297 |
| 28 | 1451278 |
| 29 | 2309191 |
| 30 | 3809621 |
| 31 | 6086044 |
| 32 | 9993969 |
| 33 | 16014477 |
| 34 | 26205054 |
| 35 | 42088459 |
| 36 | 68686729 |
| 37 | 110513044 |
[0,0,3,1,10,7,29,28,81,93,222,283,601,820,1613, 2305,4302,6351,11421,17260,30217,46453,79742, 124147,210033,330084,552405,874297,1451278, 2309191,3809621,6086044,9993969,16014477,26205054, 42088459,68686729,110513044] |