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| n | a(n) |
|---|---|
| 1 | 223 |
| 2 | 155 |
| 3 | 259 |
| 4 | 443 |
| 5 | 871 |
| 6 | 1681 |
| 7 | 2999 |
| 8 | 6103 |
| 9 | 11983 |
| 10 | 21749 |
| 11 | 44515 |
| 12 | 88087 |
| 13 | 161123 |
| 14 | 330817 |
| 15 | 656011 |
| 16 | 1210571 |
| 17 | 2483599 |
| 18 | 4939057 |
| 19 | 9174815 |
| 20 | 18819943 |
| 21 | 37462903 |
| 22 | 70101461 |
| 23 | 143554507 |
| 24 | 286165735 |
| 25 | 538738571 |
| 26 | 1101824353 |
| 27 | 2197577587 |
| 28 | 4162662491 |
[223,155,259,443,871,1681,2999,6103,11983,21749, 44515,88087,161123,330817,656011,1210571,2483599, 4939057,9174815,18819943,37462903,70101461, 143554507,286165735,538738571,1101824353, 2197577587,4162662491] |