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A081923
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Expansion of exp(2x)/(1-x)^2.
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3
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1, 4, 18, 92, 536, 3552, 26608, 223456, 2085504, 21450752, 241320704, 2949474816, 38933066752, 552141672448, 8374148696064, 135274709700608, 2318995023429632, 42051109758173184, 804227474125029376
(list; graph; refs; listen; history; internal format)
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