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A098000
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Number of outerplanar graphs on n labeled nodes.
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2
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1, 2, 8, 63, 893, 19714, 597510, 22903403, 1056115331, 56744710974, 3475626211316, 238818544070905, 18183183610029003, 1519020289266947462, 138117136134012654182, 13576724206357958780409
(list; graph; refs; listen; history; internal format)
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