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A208829 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 16 |
| 4 | 128 |
| 5 | 1396 |
| 6 | 19524 |
| 7 | 335676 |
| 8 | 6880388 |
| 9 | 164277924 |
| 10 | 4487230004 |
| 11 | 138213671308 |
| 12 | 4744574123684 |
| 13 | 179758555018740 |
| 14 | 7455418866550084 |
| 15 | 336136394342220156 |
| 16 | 16376124700916059428 |
| 17 | 857610538194682984548 |
| 18 | 48057661232590025818356 |
| 19 | 2869922852119148564815692 |
[1,1,3,16,128,1396,19524,335676,6880388,164277924, 4487230004,138213671308,4744574123684, 179758555018740,7455418866550084, 336136394342220156,16376124700916059428, 857610538194682984548,48057661232590025818356, 2869922852119148564815692] |