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| n | a(n) |
|---|---|
| 1 | 309 |
| 2 | 447 |
| 3 | 741 |
| 4 | 1383 |
| 5 | 2829 |
| 6 | 6207 |
| 7 | 14421 |
| 8 | 35223 |
| 9 | 89949 |
| 10 | 238767 |
| 11 | 654501 |
| 12 | 1840263 |
| 13 | 5274669 |
| 14 | 15332127 |
| 15 | 45012981 |
| 16 | 133072503 |
| 17 | 395284989 |
| 18 | 1177990287 |
| 19 | 3518241861 |
| 20 | 10523267943 |
| 21 | 31506888909 |
| 22 | 94394837247 |
| 23 | 282932853141 |
| 24 | 848295242583 |
[309,447,741,1383,2829,6207,14421,35223,89949, 238767,654501,1840263,5274669,15332127,45012981, 133072503,395284989,1177990287,3518241861, 10523267943,31506888909,94394837247,282932853141, 848295242583] |