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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 7 |
| 3 | 118 |
| 4 | 3205 |
| 5 | 120466 |
| 6 | 5790619 |
| 7 | 339216046 |
| 8 | 23443311049 |
| 9 | 1867308836986 |
| 10 | 168435092561671 |
| 11 | 16971155810393302 |
| 12 | 1889194092179682061 |
| 13 | 230257485553145337106 |
| 14 | 30496977601634473249363 |
| 15 | 4361533380688447142658046 |
| 16 | 669865656003334085318195089 |
[0,1,7,118,3205,120466,5790619,339216046, 23443311049,1867308836986,168435092561671, 16971155810393302,1889194092179682061, 230257485553145337106,30496977601634473249363, 4361533380688447142658046, 669865656003334085318195089] |