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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 5 |
| 3 | 13 |
| 4 | 24 |
| 5 | 58 |
| 6 | 111 |
| 7 | 257 |
| 8 | 500 |
| 9 | 1126 |
| 10 | 2210 |
| 11 | 4882 |
| 12 | 9632 |
| 13 | 20980 |
| 14 | 41531 |
| 15 | 89497 |
| 16 | 177564 |
| 17 | 379438 |
| 18 | 754014 |
| 19 | 1600406 |
| 20 | 3184016 |
| 21 | 6720748 |
| 22 | 13382710 |
| 23 | 28117498 |
| 24 | 56026984 |
| 25 | 117254268 |
| 26 | 233765636 |
| 27 | 487589572 |
| 28 | 972504704 |
| 29 | 2022568168 |
[1,3,5,13,24,58,111,257,500,1126,2210,4882,9632, 20980,41531,89497,177564,379438,754014,1600406, 3184016,6720748,13382710,28117498,56026984, 117254268,233765636,487589572,972504704, 2022568168] |