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A130495
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Number of compositions of 2n in which each part has even multiplicity.
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2
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1, 2, 8, 24, 72, 264, 952, 3352, 11960, 43656, 160840, 594568, 2215480, 8300056, 31191480, 117674504, 445439944, 1691011464, 6437425720, 24564925848, 93937631544, 359943235080
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