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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 11 |
| 3 | 181 |
| 4 | 207 |
| 5 | 225 |
| 6 | 500 |
| 7 | 524 |
| 8 | 1586 |
| 9 | 13537 |
| 10 | 376601 |
| 11 | 223063347 |
| 12 | 911054064 |
| 13 | 16073515093 |
| 14 | 22143115844 |
| 15 | 29448160810 |
| 16 | 1661699554612 |
| 17 | 2498973838515 |
| 18 | 26588790747913 |
| 19 | 27582731314539 |
| 20 | 178638660622364 |
[5,11,181,207,225,500,524,1586,13537,376601, 223063347,911054064,16073515093,22143115844, 29448160810,1661699554612,2498973838515, 26588790747913,27582731314539,178638660622364] |