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A084157
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a(n)=8a(n-1)-16a(n-2)+12a(n-4); a(0)=0, a(1)=1, a(2)=4, a(3)=22.
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1
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0, 1, 4, 22, 112, 556, 2704, 13000, 62080, 295312, 1401664, 6644320, 31472896, 149017792, 705395968, 3338614912, 15800258560, 74772443392, 353840161792, 1674425579008, 7923565146112, 37494981225472, 177428889407488
(list; graph; refs; listen; history; internal format)
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