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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 25 |
| 2 | 3025 |
| 3 | 8281 |
| 4 | 81225 |
| 5 | 148225 |
| 6 | 670761 |
| 7 | 1030225 |
| 8 | 3186225 |
| 9 | 4447881 |
| 10 | 10962721 |
| 11 | 14402025 |
| 12 | 30525625 |
| 13 | 38452401 |
| 14 | 73188025 |
| 15 | 89397025 |
| 16 | 156975841 |
| 17 | 187279225 |
| 18 | 308880625 |
| 19 | 361722361 |
| 20 | 567440041 |
| 21 | 654592225 |
| 22 | 985646025 |
| 23 | 1122987121 |
| 24 | 1634180625 |
| 25 | 1842555625 |
| 26 | 2604979521 |
| 27 | 2911142025 |
[1,25,3025,8281,81225,148225,670761,1030225, 3186225,4447881,10962721,14402025,30525625, 38452401,73188025,89397025,156975841,187279225, 308880625,361722361,567440041,654592225,985646025, 1122987121,1634180625,1842555625,2604979521, 2911142025] |