| 1, 1, 2, 4, 9, 23, 59, 153, 406, 1126, 3124, 8684, 24202, 67640, 189576, 532786, 1519151, 4356471, 12501301, 35901325, 103188123, 296844379, 854701935, 2463133311, 7104685935, 20510632575, 59262772629, 172271893036, 502157965938
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