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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 15 |
| 3 | 15 |
| 4 | 57 |
| 5 | 163 |
| 6 | 57 |
| 7 | 216 |
| 8 | 1756 |
| 9 | 1756 |
| 10 | 216 |
| 11 | 819 |
| 12 | 18712 |
| 13 | 53538 |
| 14 | 18712 |
| 15 | 819 |
| 16 | 3105 |
| 17 | 199595 |
| 18 | 1629298 |
| 19 | 1629298 |
| 20 | 199595 |
| 21 | 3105 |
| 22 | 11772 |
| 23 | 2127718 |
| 24 | 49788258 |
| 25 | 142475606 |
| 26 | 49788258 |
| 27 | 2127718 |
| 28 | 11772 |
| 29 | 44631 |
| 30 | 22684613 |
| 31 | 1519840402 |
| 32 | 12462062342 |
[4,15,15,57,163,57,216,1756,1756,216,819,18712, 53538,18712,819,3105,199595,1629298,1629298, 199595,3105,11772,2127718,49788258,142475606, 49788258,2127718,11772,44631,22684613,1519840402, 12462062342] |