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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 5 |
| 3 | 50 |
| 4 | 500 |
| 5 | 505 |
| 6 | 5000 |
| 7 | 5005 |
| 8 | 5050 |
| 9 | 50000 |
| 10 | 50005 |
| 11 | 50050 |
| 12 | 50500 |
| 13 | 500000 |
| 14 | 500005 |
| 15 | 500050 |
| 16 | 500500 |
| 17 | 500505 |
| 18 | 505000 |
| 19 | 5000000 |
| 20 | 5000005 |
| 21 | 5000050 |
| 22 | 5000500 |
| 23 | 5000505 |
| 24 | 5005000 |
| 25 | 5005050 |
| 26 | 5050000 |
| 27 | 5050005 |
| 28 | 50000000 |
| 29 | 50000005 |
| 30 | 50000050 |
| 31 | 50000500 |
| 32 | 50000505 |
| 33 | 50005000 |
| 34 | 50005005 |
| 35 | 50005050 |
| 36 | 50050000 |
| 37 | 50050500 |
| 38 | 50500000 |
| 39 | 50500005 |
| 40 | 50500050 |
| 41 | 500000000 |
[0,5,50,500,505,5000,5005,5050,50000,50005,50050, 50500,500000,500005,500050,500500,500505,505000, 5000000,5000005,5000050,5000500,5000505,5005000, 5005050,5050000,5050005,50000000,50000005, 50000050,50000500,50000505,50005000,50005005, 50005050,50050000,50050500,50500000,50500005, 50500050,500000000] |