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| n | a(n) |
|---|---|
| 1 | 688 |
| 2 | 12762 |
| 3 | 25510 |
| 4 | 149364 |
| 5 | 263155 |
| 6 | 1181565 |
| 7 | 1677672 |
| 8 | 2266852 |
| 9 | 3410968 |
| 10 | 7992868 |
| 11 | 11253375 |
| 12 | 12374428 |
| 13 | 18227848 |
| 14 | 25050100 |
| 15 | 25108330 |
| 16 | 37466244 |
| 17 | 65726896 |
| 18 | 68587492 |
| 19 | 73658920 |
| 20 | 112129344 |
| 21 | 112822564 |
| 22 | 233965908 |
| 23 | 251434872 |
| 24 | 273026902 |
| 25 | 592687408 |
| 26 | 599873607 |
| 27 | 907593975 |
[688,12762,25510,149364,263155,1181565,1677672, 2266852,3410968,7992868,11253375,12374428, 18227848,25050100,25108330,37466244,65726896, 68587492,73658920,112129344,112822564,233965908, 251434872,273026902,592687408,599873607,907593975] |