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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 4 |
| 3 | 15 |
| 4 | 24 |
| 5 | 25 |
| 6 | 115 |
| 7 | 124 |
| 8 | 525 |
| 9 | 615 |
| 10 | 624 |
| 11 | 2125 |
| 12 | 3025 |
| 13 | 3115 |
| 14 | 3124 |
| 15 | 5625 |
| 16 | 14625 |
| 17 | 15525 |
| 18 | 15615 |
| 19 | 15624 |
| 20 | 68125 |
| 21 | 77125 |
| 22 | 78025 |
| 23 | 78115 |
| 24 | 78124 |
| 25 | 290625 |
| 26 | 380625 |
| 27 | 389625 |
| 28 | 390525 |
| 29 | 390615 |
| 30 | 390624 |
| 31 | 953125 |
| 32 | 1853125 |
| 33 | 1943125 |
| 34 | 1952125 |
| 35 | 1953025 |
| 36 | 1953115 |
| 37 | 1953124 |
| 38 | 8765625 |
[0,4,15,24,25,115,124,525,615,624,2125,3025,3115, 3124,5625,14625,15525,15615,15624,68125,77125, 78025,78115,78124,290625,380625,389625,390525, 390615,390624,953125,1853125,1943125,1952125, 1953025,1953115,1953124,8765625] |