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| n | a(n) |
|---|---|
| 0 | 25 |
| 1 | 26 |
| 2 | 51 |
| 3 | 128 |
| 4 | 691 |
| 5 | 2201 |
| 6 | 5093 |
| 7 | 42945 |
| 8 | 434543 |
| 9 | 3519289 |
| 10 | 7473121 |
| 11 | 25938652 |
| 12 | 137166381 |
| 13 | 300271414 |
| 14 | 437437795 |
| 15 | 737709209 |
| 16 | 37322898245 |
| 17 | 38060607454 |
| 18 | 75383505699 |
| 19 | 188827618852 |
| 20 | 1019521599959 |
| 21 | 3247392418729 |
[25,26,51,128,691,2201,5093,42945,434543,3519289, 7473121,25938652,137166381,300271414,437437795, 737709209,37322898245,38060607454,75383505699, 188827618852,1019521599959,3247392418729] |