| 1, 1, 1, 1, 1, 2, 5, 10, 19, 37, 73, 147, 293, 586, 1172, 2342, 4682, 9362, 18726, 37450, 74900, 149800, 299596, 599188, 1198372, 2396748, 4793492, 9586984, 19173968, 38347928, 76695848, 153391688, 306783384, 613566760, 1227133520, 2454267040
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