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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 45 |
| 4 | 585 |
| 5 | 9961 |
| 6 | 210061 |
| 7 | 5289845 |
| 8 | 155026705 |
| 9 | 5186652945 |
| 10 | 195165726101 |
| 11 | 8161532936701 |
| 12 | 375619788842585 |
| 13 | 18871026734111865 |
| 14 | 1027821645714667805 |
| 15 | 60331977158792903621 |
| 16 | 3797171848203209305121 |
| 17 | 255100015925127615105825 |
[1,5,45,585,9961,210061,5289845,155026705, 5186652945,195165726101,8161532936701, 375619788842585,18871026734111865, 1027821645714667805,60331977158792903621, 3797171848203209305121,255100015925127615105825] |