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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 5 |
| 7 | 8 |
| 8 | 17 |
| 9 | 30 |
| 10 | 55 |
| 11 | 101 |
| 12 | 194 |
| 13 | 352 |
| 14 | 663 |
| 15 | 1227 |
| 16 | 2275 |
| 17 | 4225 |
| 18 | 7877 |
| 19 | 14600 |
| 20 | 27158 |
| 21 | 50414 |
| 22 | 93666 |
| 23 | 173972 |
| 24 | 323286 |
| 25 | 600353 |
| 26 | 1115407 |
| 27 | 2071843 |
| 28 | 3848794 |
| 29 | 7149196 |
| 30 | 13280874 |
| 31 | 24669606 |
| 32 | 45827047 |
| 33 | 85126845 |
| 34 | 158131764 |
| 35 | 293742200 |
| 36 | 545655290 |
| 37 | 1013598733 |
[1,1,1,1,2,5,8,17,30,55,101,194,352,663,1227,2275, 4225,7877,14600,27158,50414,93666,173972,323286, 600353,1115407,2071843,3848794,7149196,13280874, 24669606,45827047,85126845,158131764,293742200, 545655290,1013598733] |