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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 1 |
| 4 | 8 |
| 5 | 2 |
| 6 | 334 |
| 7 | 2450 |
| 8 | 688 |
| 9 | 958 |
| 10 | 60676 |
| 11 | 151 |
| 12 | 239478914 |
| 13 | 1718557 |
| 14 | 43588850341 |
| 15 | 44525 |
| 16 | 3435544097 |
| 17 | 128202996855 |
| 18 | 166046498 |
| 19 | 468640744 |
| 20 | 9748065626452 |
| 21 | 2406214305714 |
| 22 | 54782975386 |
| 23 | 249195119225246375 |
| 24 | 20940713346 |
| 25 | 57388133232314021954 |
| 26 | 9869596698791300782235 |
| 27 | 187739128455384480612259907 |
| 28 | 184395236716104 |
[1,1,8,2,334,2450,688,958,60676,151,239478914, 1718557,43588850341,44525,3435544097,128202996855, 166046498,468640744,9748065626452,2406214305714, 54782975386,249195119225246375,20940713346, 57388133232314021954,9869596698791300782235, 187739128455384480612259907,184395236716104] |