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| n | a(n) |
|---|---|
| 1 | 51 |
| 2 | 221 |
| 3 | 631 |
| 4 | 1401 |
| 5 | 2651 |
| 6 | 4501 |
| 7 | 7071 |
| 8 | 10481 |
| 9 | 14851 |
| 10 | 20301 |
| 11 | 26951 |
| 12 | 34921 |
| 13 | 44331 |
| 14 | 55301 |
| 15 | 67951 |
| 16 | 82401 |
| 17 | 98771 |
| 18 | 117181 |
| 19 | 137751 |
| 20 | 160601 |
| 21 | 185851 |
| 22 | 213621 |
| 23 | 244031 |
| 24 | 277201 |
| 25 | 313251 |
| 26 | 352301 |
| 27 | 394471 |
| 28 | 439881 |
| 29 | 488651 |
| 30 | 540901 |
| 31 | 596751 |
| 32 | 656321 |
| 33 | 719731 |
[51,221,631,1401,2651,4501,7071,10481,14851,20301, 26951,34921,44331,55301,67951,82401,98771,117181, 137751,160601,185851,213621,244031,277201,313251, 352301,394471,439881,488651,540901,596751,656321, 719731] |