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| n | a(n) |
|---|---|
| 0 | 174 |
| 1 | 22734 |
| 2 | 299646 |
| 3 | 2332398 |
| 4 | 14462574 |
| 5 | 79461294 |
| 6 | 406098606 |
| 7 | 1980213678 |
| 8 | 9348000174 |
| 9 | 43104718254 |
| 10 | 195270696366 |
| 11 | 872477232558 |
| 12 | 3855431404974 |
| 13 | 16883645533614 |
| 14 | 73381802986926 |
| 15 | 316914939973038 |
| 16 | 1361207885548974 |
| 17 | 5819017520467374 |
| 18 | 24772799043194286 |
[174,22734,299646,2332398,14462574,79461294, 406098606,1980213678,9348000174,43104718254, 195270696366,872477232558,3855431404974, 16883645533614,73381802986926,316914939973038, 1361207885548974,5819017520467374, 24772799043194286] |