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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 23 |
| 2 | 362 |
| 3 | 4894 |
| 4 | 61251 |
| 5 | 733461 |
| 6 | 8546764 |
| 7 | 97847228 |
| 8 | 1106991941 |
| 9 | 12422320339 |
| 10 | 138608884206 |
| 11 | 1540404875802 |
| 12 | 17070111627271 |
| 13 | 188776494239057 |
| 14 | 2084583574516688 |
| 15 | 22994756444303416 |
| 16 | 253457017948866441 |
[1,23,362,4894,61251,733461,8546764,97847228, 1106991941,12422320339,138608884206,1540404875802, 17070111627271,188776494239057,2084583574516688, 22994756444303416,253457017948866441] |