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A086345
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Number of connected oriented graphs (i.e. connected directed graphs with no bidirected edges) on n nodes.
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2
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1, 1, 5, 34, 535, 20848, 2120098, 572849763, 415361983540, 815590925440865, 4373589784210012634, 64535461714821630421106, 2637732191356603658136444467, 300363258297687600380548275359231
(list; graph; refs; listen; history; internal format)
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