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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 35 |
| 3 | 324 |
| 4 | 2899 |
| 5 | 23895 |
| 6 | 193052 |
| 7 | 1550909 |
| 8 | 12392103 |
| 9 | 98844849 |
| 10 | 787498031 |
| 11 | 6270246085 |
| 12 | 49907638031 |
| 13 | 397162497929 |
| 14 | 3160272329316 |
| 15 | 25145272816990 |
| 16 | 200066755560852 |
| 17 | 1591791510072767 |
| 18 | 12664659002993396 |
[1,35,324,2899,23895,193052,1550909,12392103, 98844849,787498031,6270246085,49907638031, 397162497929,3160272329316,25145272816990, 200066755560852,1591791510072767, 12664659002993396] |