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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 1 |
| 4 | 45 |
| 5 | 5 |
| 6 | 1 |
| 7 | 585 |
| 8 | 45 |
| 9 | 25 |
| 10 | 5 |
| 11 | 1 |
| 12 | 9945 |
| 13 | 585 |
| 14 | 225 |
| 15 | 45 |
| 16 | 25 |
| 17 | 5 |
| 18 | 1 |
| 19 | 208845 |
| 20 | 9945 |
| 21 | 2925 |
| 22 | 2025 |
| 23 | 585 |
| 24 | 225 |
| 25 | 125 |
| 26 | 45 |
| 27 | 25 |
| 28 | 5 |
| 29 | 1 |
| 30 | 5221125 |
| 31 | 208845 |
| 32 | 49725 |
| 33 | 26325 |
| 34 | 9945 |
| 35 | 2925 |
| 36 | 2025 |
| 37 | 1125 |
| 38 | 585 |
| 39 | 225 |
| 40 | 125 |
| 41 | 45 |
| 42 | 25 |
| 43 | 5 |
| 44 | 1 |
| 45 | 151412625 |
| 46 | 5221125 |
| 47 | 1044225 |
| 48 | 447525 |
| 49 | 342225 |
[1,5,1,45,5,1,585,45,25,5,1,9945,585,225,45,25,5, 1,208845,9945,2925,2025,585,225,125,45,25,5,1, 5221125,208845,49725,26325,9945,2925,2025,1125, 585,225,125,45,25,5,1,151412625,5221125,1044225, 447525,342225] |