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A000545 as a simple table
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 96 |
| 3 | 9099 |
| 4 | 280832 |
| 5 | 4073375 |
| 6 | 36292320 |
| 7 | 230719293 |
| 8 | 1145393152 |
| 9 | 4707296613 |
| 10 | 16666924000 |
| 11 | 52307593239 |
| 12 | 148602435840 |
| 13 | 388302646355 |
| 14 | 944900450144 |
| 15 | 2162441849625 |
| 16 | 4691253854208 |
| 17 | 9710376716137 |
| 18 | 19280531603808 |
| 19 | 36888593841475 |
| 20 | 68266682784000 |
| 21 | 122597146773927 |
[1,96,9099,280832,4073375,36292320,230719293, 1145393152,4707296613,16666924000,52307593239, 148602435840,388302646355,944900450144, 2162441849625,4691253854208,9710376716137, 19280531603808,36888593841475,68266682784000, 122597146773927] |