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| n | a(n) |
|---|---|
| 1 | 3249 |
| 2 | 81225 |
| 3 | 225625 |
| 4 | 364816 |
| 5 | 2079364 |
| 6 | 4950625 |
| 7 | 39601849 |
| 8 | 44156025 |
| 9 | 84180625 |
| 10 | 92294449 |
| 11 | 116964225 |
| 12 | 267289801 |
| 13 | 341991049 |
| 14 | 643890625 |
| 15 | 1212780625 |
| 16 | 1445900625 |
| 17 | 1699500625 |
| 18 | 2307361225 |
| 19 | 2924105625 |
| 20 | 2998438564 |
| 21 | 3204126025 |
[3249,81225,225625,364816,2079364,4950625, 39601849,44156025,84180625,92294449,116964225, 267289801,341991049,643890625,1212780625, 1445900625,1699500625,2307361225,2924105625, 2998438564,3204126025] |