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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 18 |
| 2 | 9 |
| 3 | 154 |
| 4 | 77 |
| 5 | 1310 |
| 6 | 655 |
| 7 | 11136 |
| 8 | 5568 |
| 9 | 2784 |
| 10 | 1392 |
| 11 | 696 |
| 12 | 348 |
| 13 | 174 |
| 14 | 87 |
| 15 | 1480 |
| 16 | 740 |
| 17 | 370 |
| 18 | 185 |
| 19 | 3146 |
| 20 | 1573 |
| 21 | 26742 |
| 22 | 13371 |
| 23 | 227308 |
| 24 | 113654 |
| 25 | 56827 |
| 26 | 966060 |
| 27 | 483030 |
| 28 | 241515 |
| 29 | 4105756 |
| 30 | 2052878 |
| 31 | 1026439 |
| 32 | 17449464 |
[1,18,9,154,77,1310,655,11136,5568,2784,1392,696, 348,174,87,1480,740,370,185,3146,1573,26742,13371, 227308,113654,56827,966060,483030,241515,4105756, 2052878,1026439,17449464] |