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| n | a(n) |
|---|---|
| 2 | 23 |
| 3 | 47 |
| 4 | 1621 |
| 5 | 373 |
| 6 | 2352631 |
| 7 | 9241 |
| 8 | 18235603 |
| 9 | 21968759 |
| 10 | 27575049743 |
| 11 | 2794997 |
| 12 | 32503712890637 |
| 13 | 304321037 |
| 14 | 390917388671861 |
| 15 | 277829661054961 |
| 16 | 14392115869140641 |
| 17 | 442395934703 |
[23,47,1621,373,2352631,9241,18235603,21968759, 27575049743,2794997,32503712890637,304321037, 390917388671861,277829661054961,14392115869140641, 442395934703] |