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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 7 |
| 2 | 105 |
| 3 | 196 |
| 4 | 49 |
| 5 | 1673 |
| 6 | 11564 |
| 7 | 13181 |
| 8 | 4116 |
| 9 | 343 |
| 10 | 28133 |
| 11 | 566636 |
| 12 | 1643999 |
| 13 | 1407672 |
| 14 | 453446 |
| 15 | 57624 |
| 16 | 2401 |
| 17 | 496769 |
| 18 | 26784380 |
| 19 | 168588665 |
| 20 | 298710468 |
| 21 | 207080419 |
| 22 | 65115120 |
| 23 | 9772070 |
| 24 | 672280 |
| 25 | 16807 |
[1,7,105,196,49,1673,11564,13181,4116,343,28133, 566636,1643999,1407672,453446,57624,2401,496769, 26784380,168588665,298710468,207080419,65115120, 9772070,672280,16807] |