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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 151 |
| 4 | 181 |
| 5 | 13 |
| 6 | 811 |
| 7 | 23671 |
| 8 | 92221 |
| 9 | 45417481 |
| 10 | 5078503 |
| 11 | 4861 |
| 12 | 20379346831 |
| 13 | 12180447943 |
| 14 | 31 |
| 15 | 10347699089473 |
[2,3,151,181,13,811,23671,92221,45417481,5078503, 4861,20379346831,12180447943,31,10347699089473] |