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A058480
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Total number of interior nodes in all series-parallel networks with n labeled edges, multiple edges allowed.
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3
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0, 0, 1, 8, 78, 944, 13760, 235248, 4620224, 102551296, 2539240416, 69398978560, 2075328010624, 67408188246528, 2363279141726464, 88952164594807808, 3577709564478865920, 153136329382704201728, 6950244396227548178432
(list; graph; refs; listen; history; internal format)
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