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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 42 |
| 3 | 1430 |
| 4 | 3686 |
| 5 | 5685 |
| 6 | 23815 |
| 7 | 60235 |
| 8 | 129778 |
| 9 | 370991 |
| 10 | 652289 |
| 11 | 654545 |
| 12 | 660265 |
| 13 | 795405 |
| 14 | 801645 |
| 15 | 1532170 |
| 16 | 3413267 |
| 17 | 3457597 |
| 18 | 4235270 |
| 19 | 4282330 |
| 20 | 8107937 |
| 21 | 9679187 |
| 22 | 10835013 |
| 23 | 15464685 |
| 24 | 15963578 |
| 25 | 16636503 |
| 26 | 24976497 |
| 27 | 28122458 |
| 28 | 29595310 |
| 29 | 34759879 |
| 30 | 35642479 |
| 31 | 58525286 |
[6,42,1430,3686,5685,23815,60235,129778,370991, 652289,654545,660265,795405,801645,1532170, 3413267,3457597,4235270,4282330,8107937,9679187, 10835013,15464685,15963578,16636503,24976497, 28122458,29595310,34759879,35642479,58525286] |