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| n | a(n) |
|---|---|
| 1 | 36 |
| 2 | 58 |
| 3 | 138 |
| 4 | 266 |
| 5 | 472 |
| 6 | 944 |
| 7 | 1880 |
| 8 | 3562 |
| 9 | 6866 |
| 10 | 13450 |
| 11 | 26016 |
| 12 | 50176 |
| 13 | 97392 |
| 14 | 188890 |
| 15 | 365434 |
| 16 | 707786 |
| 17 | 1371848 |
| 18 | 2657040 |
| 19 | 5145832 |
| 20 | 9969162 |
| 21 | 19312130 |
| 22 | 37406666 |
| 23 | 72459984 |
| 24 | 140365536 |
| 25 | 271897664 |
| 26 | 526684282 |
| 27 | 1020240874 |
| 28 | 1976299402 |
| 29 | 3828249912 |
[36,58,138,266,472,944,1880,3562,6866,13450,26016, 50176,97392,188890,365434,707786,1371848,2657040, 5145832,9969162,19312130,37406666,72459984, 140365536,271897664,526684282,1020240874, 1976299402,3828249912] |