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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 51 |
| 3 | 117 |
| 4 | 145 |
| 5 | 247 |
| 6 | 425 |
| 7 | 651 |
| 8 | 715 |
| 9 | 852 |
| 10 | 1001 |
| 11 | 1247 |
| 12 | 1717 |
| 13 | 1820 |
| 14 | 2147 |
| 15 | 2501 |
| 16 | 3015 |
| 17 | 3151 |
| 18 | 4187 |
[5,51,117,145,247,425,651,715,852,1001,1247,1717, 1820,2147,2501,3015,3151,4187] |