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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 25 |
| 3 | 150 |
| 4 | 1000 |
| 5 | 7125 |
| 6 | 53125 |
| 7 | 409375 |
| 8 | 3234375 |
| 9 | 26059375 |
| 10 | 213296875 |
| 11 | 1768625000 |
| 12 | 14825156250 |
| 13 | 125419296875 |
| 14 | 1069473046875 |
| 15 | 9182583593750 |
| 16 | 79319843750000 |
| 17 | 688837802734375 |
| 18 | 6010580419921875 |
| 19 | 52670308222656250 |
| 20 | 463321803125000000 |
| 21 | 4089876834521484375 |
| 22 | 36217014743896484375 |
[1,5,25,150,1000,7125,53125,409375,3234375, 26059375,213296875,1768625000,14825156250, 125419296875,1069473046875,9182583593750, 79319843750000,688837802734375,6010580419921875, 52670308222656250,463321803125000000, 4089876834521484375,36217014743896484375] |