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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 12 |
| 4 | 28 |
| 5 | 61 |
| 6 | 127 |
| 7 | 257 |
| 8 | 507 |
| 9 | 982 |
| 10 | 1872 |
| 11 | 3523 |
| 12 | 6557 |
| 13 | 12089 |
| 14 | 22105 |
| 15 | 40128 |
| 16 | 72380 |
| 17 | 129809 |
| 18 | 231611 |
| 19 | 411337 |
| 20 | 727455 |
| 21 | 1281578 |
| 22 | 2249856 |
| 23 | 3936935 |
| 24 | 6868537 |
| 25 | 11950033 |
| 26 | 20737613 |
| 27 | 35901300 |
| 28 | 62014396 |
| 29 | 106897669 |
| 30 | 183905143 |
| 31 | 315806321 |
| 32 | 541372131 |
[1,1,5,12,28,61,127,257,507,982,1872,3523,6557, 12089,22105,40128,72380,129809,231611,411337, 727455,1281578,2249856,3936935,6868537,11950033, 20737613,35901300,62014396,106897669,183905143, 315806321,541372131] |