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| n | a(n) |
|---|---|
| 1 | 25 |
| 2 | 1597 |
| 3 | 21344 |
| 4 | 686759 |
| 5 | 19123802 |
| 6 | 513362648 |
| 7 | 14372583192 |
| 8 | 402254701097 |
| 9 | 11172616795189 |
| 10 | 309961960884860 |
| 11 | 8636593218691567 |
| 12 | 240597854301944078 |
| 13 | 6696378931249054755 |
| 14 | 186420836116243663032 |
| 15 | 5190804183327066922164 |
[25,1597,21344,686759,19123802,513362648, 14372583192,402254701097,11172616795189, 309961960884860,8636593218691567, 240597854301944078,6696378931249054755, 186420836116243663032,5190804183327066922164] |