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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 146 |
| 3 | 3090 |
| 4 | 76264 |
| 5 | 1872136 |
| 6 | 46019438 |
| 7 | 1130422470 |
| 8 | 27772974680 |
| 9 | 682321382792 |
| 10 | 16763244199326 |
| 11 | 411838270131110 |
| 12 | 10118017508760932 |
| 13 | 248578825697527904 |
| 14 | 6107069206409843814 |
| 15 | 150038098056691694070 |
| 16 | 3686126702598216458948 |
[0,146,3090,76264,1872136,46019438,1130422470, 27772974680,682321382792,16763244199326, 411838270131110,10118017508760932, 248578825697527904,6107069206409843814, 150038098056691694070,3686126702598216458948] |