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A109961
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Expansion of (1-3x+3x^2-x^3)/(1-4x+5x^2-4x^3+x^4).
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3
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1, 1, 2, 6, 17, 45, 117, 305, 798, 2090, 5473, 14329, 37513, 98209, 257114, 673134, 1762289, 4613733, 12078909, 31622993, 82790070, 216747218, 567451585, 1485607537, 3889371025, 10182505537, 26658145586, 69791931222, 182717648081
(list; graph; refs; listen; history; internal format)
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