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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 21 |
| 3 | 61 |
| 4 | 125 |
| 5 | 261 |
| 6 | 421 |
| 7 | 605 |
| 8 | 1101 |
| 9 | 1681 |
| 10 | 2525 |
| 11 | 2781 |
| 12 | 4201 |
| 13 | 5645 |
| 14 | 6741 |
| 15 | 9541 |
| 16 | 11765 |
| 17 | 13701 |
| 18 | 17641 |
| 19 | 21305 |
| 20 | 27981 |
| 21 | 29401 |
| 22 | 37265 |
| 23 | 43521 |
| 24 | 51541 |
| 25 | 59945 |
| 26 | 65781 |
| 27 | 78121 |
| 28 | 89345 |
| 29 | 99981 |
| 30 | 121381 |
| 31 | 124445 |
| 32 | 144321 |
| 33 | 173041 |
| 34 | 189965 |
| 35 | 212361 |
| 36 | 229381 |
[1,5,21,61,125,261,421,605,1101,1681,2525,2781, 4201,5645,6741,9541,11765,13701,17641,21305,27981, 29401,37265,43521,51541,59945,65781,78121,89345, 99981,121381,124445,144321,173041,189965,212361, 229381] |