| 1, 1, 2, 4, 7, 14, 25, 48, 90, 168, 316, 592, 1112, 2086, 3913, 7342, 13775, 25845, 48490, 90978, 170694, 320257, 600867, 1127352, 2115147, 3968453, 7445640, 13969562, 26209794, 49175002, 92262491, 173103549, 324778120, 609351037
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