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| n | a(n) |
|---|---|
| 1 | 40 |
| 2 | 131 |
| 3 | 774 |
| 4 | 2775 |
| 5 | 9184 |
| 6 | 50674 |
| 7 | 219852 |
| 8 | 991164 |
| 9 | 6265304 |
| 10 | 31978322 |
| 11 | 161993488 |
| 12 | 1205560940 |
| 13 | 7787001888 |
| 14 | 46339128440 |
| 15 | 362482299512 |
| 16 | 2995644789618 |
[40,131,774,2775,9184,50674,219852,991164,6265304, 31978322,161993488,1205560940,7787001888, 46339128440,362482299512,2995644789618] |