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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | 23 |
| 2 | 67 |
| 3 | 1031 |
| 4 | 19 |
| 5 | 61463 |
| 6 | 290659 |
| 7 | 977591 |
| 8 | 257853763 |
| 9 | 62602607 |
| 10 | 26744819683 |
| 11 | 419897923439 |
| 12 | 5254699 |
| 13 | 31105379274647 |
| 14 | 3898814282899 |
| 15 | 42812012202143 |
| 16 | 291516070141267 |
| 17 | 1646700822288287 |
| 18 | 31943436447743683 |
| 19 | 50590939472510999 |
| 20 | 151828450171141747 |
| 21 | 104165257122907367 |
| 22 | 15165857481926132731 |
[3,23,67,1031,19,61463,290659,977591,257853763, 62602607,26744819683,419897923439,5254699, 31105379274647,3898814282899,42812012202143, 291516070141267,1646700822288287, 31943436447743683,50590939472510999, 151828450171141747,104165257122907367, 15165857481926132731] |