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| n | a(n) |
|---|---|
| 1 | 86 |
| 2 | 562 |
| 3 | 2985 |
| 4 | 14027 |
| 5 | 59228 |
| 6 | 229332 |
| 7 | 831604 |
| 8 | 2851809 |
| 9 | 9325995 |
| 10 | 29328607 |
| 11 | 89150381 |
| 12 | 263046025 |
| 13 | 756504326 |
| 14 | 2126823610 |
| 15 | 5859328828 |
| 16 | 15854904128 |
| 17 | 42214959089 |
| 18 | 110768292616 |
| 19 | 286828441922 |
| 20 | 733847705458 |
| 21 | 1856968194517 |
| 22 | 4651729423211 |
[86,562,2985,14027,59228,229332,831604,2851809, 9325995,29328607,89150381,263046025,756504326, 2126823610,5859328828,15854904128,42214959089, 110768292616,286828441922,733847705458, 1856968194517,4651729423211] |