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| n | a(n) |
|---|---|
| 0 | 5 |
| 1 | 19 |
| 2 | 61 |
| 3 | 187 |
| 4 | 565 |
| 5 | 1699 |
| 6 | 5101 |
| 7 | 15307 |
| 8 | 45925 |
| 9 | 137779 |
| 10 | 413341 |
| 11 | 1240027 |
| 12 | 3720085 |
| 13 | 11160259 |
| 14 | 33480781 |
| 15 | 100442347 |
| 16 | 301327045 |
| 17 | 903981139 |
| 18 | 2711943421 |
| 19 | 8135830267 |
| 20 | 24407490805 |
| 21 | 73222472419 |
| 22 | 219667417261 |
| 23 | 659002251787 |
| 24 | 1977006755365 |
| 25 | 5931020266099 |
| 26 | 17793060798301 |
| 27 | 53379182394907 |
[5,19,61,187,565,1699,5101,15307,45925,137779, 413341,1240027,3720085,11160259,33480781, 100442347,301327045,903981139,2711943421, 8135830267,24407490805,73222472419,219667417261, 659002251787,1977006755365,5931020266099, 17793060798301,53379182394907] |