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| n | a(n) |
|---|---|
| 1 | 67 |
| 2 | 146 |
| 3 | 439 |
| 4 | 1187 |
| 5 | 3227 |
| 6 | 8964 |
| 7 | 24719 |
| 8 | 67952 |
| 9 | 187266 |
| 10 | 516133 |
| 11 | 1421669 |
| 12 | 3916441 |
| 13 | 10790266 |
| 14 | 29726787 |
| 15 | 81895288 |
| 16 | 225619582 |
| 17 | 621575781 |
| 18 | 1712418521 |
| 19 | 4717655719 |
| 20 | 12996990098 |
| 21 | 35806276733 |
| 22 | 98645103102 |
| 23 | 271764008258 |
| 24 | 748700872883 |
[67,146,439,1187,3227,8964,24719,67952,187266, 516133,1421669,3916441,10790266,29726787,81895288, 225619582,621575781,1712418521,4717655719, 12996990098,35806276733,98645103102,271764008258, 748700872883] |