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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 5 |
| 4 | 9 |
| 5 | 15 |
| 6 | 17 |
| 7 | 40 |
| 8 | 73 |
| 9 | 87 |
| 10 | 219 |
| 11 | 433 |
| 12 | 583 |
| 13 | 1421 |
| 14 | 2954 |
| 15 | 4560 |
| 16 | 10528 |
| 17 | 22379 |
| 18 | 38588 |
| 19 | 85235 |
| 20 | 181931 |
| 21 | 338249 |
| 22 | 726130 |
| 23 | 1543719 |
| 24 | 3007403 |
| 25 | 6351135 |
| 26 | 13421225 |
| 27 | 26878019 |
| 28 | 56264157 |
| 29 | 118252672 |
| 30 | 240605844 |
| 31 | 501399260 |
| 32 | 1049453261 |
| 33 | 2154572654 |
| 34 | 4480060581 |
[1,7,5,9,15,17,40,73,87,219,433,583,1421,2954, 4560,10528,22379,38588,85235,181931,338249,726130, 1543719,3007403,6351135,13421225,26878019, 56264157,118252672,240605844,501399260,1049453261, 2154572654,4480060581] |