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| n | a(n) |
|---|---|
| 1 | 181 |
| 2 | 174 |
| 3 | 192 |
| 4 | 228 |
| 5 | 300 |
| 6 | 444 |
| 7 | 732 |
| 8 | 1308 |
| 9 | 2460 |
| 10 | 4764 |
| 11 | 9372 |
| 12 | 18588 |
| 13 | 37020 |
| 14 | 73884 |
| 15 | 147612 |
| 16 | 295068 |
| 17 | 589980 |
| 18 | 1179804 |
| 19 | 2359452 |
| 20 | 4718748 |
| 21 | 9437340 |
| 22 | 18874524 |
| 23 | 37748892 |
| 24 | 75497628 |
| 25 | 150995100 |
| 26 | 301990044 |
| 27 | 603979932 |
| 28 | 1207959708 |
| 29 | 2415919260 |
| 30 | 4831838364 |
[181,174,192,228,300,444,732,1308,2460,4764,9372, 18588,37020,73884,147612,295068,589980,1179804, 2359452,4718748,9437340,18874524,37748892, 75497628,150995100,301990044,603979932,1207959708, 2415919260,4831838364] |