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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 10 |
| 6 | 20 |
| 7 | 38 |
| 8 | 71 |
| 9 | 130 |
| 10 | 235 |
| 11 | 420 |
| 12 | 744 |
| 13 | 1308 |
| 14 | 2285 |
| 15 | 3970 |
| 16 | 6865 |
| 17 | 11822 |
| 18 | 20284 |
| 19 | 34690 |
| 20 | 59155 |
| 21 | 100610 |
| 22 | 170711 |
| 23 | 289032 |
| 24 | 488400 |
| 25 | 823800 |
| 26 | 1387225 |
| 27 | 2332418 |
| 28 | 3916061 |
| 29 | 6566290 |
| 30 | 10996580 |
| 31 | 18394910 |
| 32 | 30737759 |
| 33 | 51310978 |
| 34 | 85573315 |
| 35 | 142587180 |
| 36 | 237387960 |
| 37 | 394905492 |
[0,0,1,2,5,10,20,38,71,130,235,420,744,1308,2285, 3970,6865,11822,20284,34690,59155,100610,170711, 289032,488400,823800,1387225,2332418,3916061, 6566290,10996580,18394910,30737759,51310978, 85573315,142587180,237387960,394905492] |