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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 36 |
| 3 | 144 |
| 4 | 361 |
| 5 | 1369 |
| 6 | 4225 |
| 7 | 10816 |
| 8 | 17689 |
| 9 | 29929 |
| 10 | 69169 |
| 11 | 140625 |
| 12 | 166464 |
| 13 | 314721 |
| 14 | 474721 |
| 15 | 729316 |
| 16 | 1225449 |
| 17 | 1817104 |
| 18 | 2353156 |
| 19 | 3308761 |
| 20 | 4251844 |
| 21 | 5832225 |
| 22 | 8242641 |
| 23 | 10942864 |
| 24 | 13653025 |
| 25 | 17986081 |
| 26 | 23396569 |
| 27 | 28654609 |
| 28 | 35940025 |
| 29 | 43243776 |
| 30 | 53158681 |
| 31 | 67420521 |
| 32 | 80622441 |
| 33 | 97337956 |
[4,36,144,361,1369,4225,10816,17689,29929,69169, 140625,166464,314721,474721,729316,1225449, 1817104,2353156,3308761,4251844,5832225,8242641, 10942864,13653025,17986081,23396569,28654609, 35940025,43243776,53158681,67420521,80622441, 97337956] |