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A124280
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Expansion of 1/(1-x-x^2+x^3-x^4).
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2
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1, 1, 2, 2, 4, 5, 9, 12, 20, 28, 45, 65, 102, 150, 232, 345, 529, 792, 1208, 1816, 2761, 4161, 6314, 9530, 14444, 21821, 33049, 49956, 75628, 114356, 173077, 261761, 396110, 599150, 906576, 1371377, 2074913, 3138864
(list; graph; refs; listen; history; internal format)
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