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A015515
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a(1)=1, a(n) = sum_{k=1}^{k=n-1} (12^k-1)/11 a(k).
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0
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1, 1, 14, 2212, 4171832, 94375183504, 25618521062894816, 83450744014073963641408, 3262026661649164626974053098368, 1530121919008888925087797696409496422656
(list; graph; refs; listen; history; internal format)
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