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A170946
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Number of sensed unrooted maps with n edges.
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7
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2, 5, 20, 107, 870, 9436, 122840, 1863359, 32019826, 613981447, 12989756316, 300559406027, 7550660328494, 204687564072918, 5955893472990664, 185158932576089787, 6125200100394894738, 214837724735760642773
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OFFSET
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1,1
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COMMENTS
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Also number of "dessins d'enfants" with n edges. - Mark van Hoeij, Jan 23 2011
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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