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| n | a(n) |
|---|---|
| 0 | 23 |
| 1 | 47 |
| 2 | 2185 |
| 3 | 4417 |
| 4 | 205367 |
| 5 | 415151 |
| 6 | 19302313 |
| 7 | 39019777 |
| 8 | 1814212055 |
| 9 | 3667443887 |
| 10 | 170516630857 |
| 11 | 344700705601 |
| 12 | 16026749088503 |
| 13 | 32398198882607 |
| 14 | 1506343897688425 |
| 15 | 3045085994259457 |
| 16 | 141580299633623447 |
| 17 | 286205685261506351 |
[23,47,2185,4417,205367,415151,19302313,39019777, 1814212055,3667443887,170516630857,344700705601, 16026749088503,32398198882607,1506343897688425, 3045085994259457,141580299633623447, 286205685261506351] |