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A058804
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Number of labeled vertically indecomposable lattices with a fixed bottom.
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2
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1, 1, 1, 0, 3, 28, 485, 11886, 396277, 17214856, 944152281, 63752343130, 5192082859601, 501340949329980, 56567812054113373, 7366464172601396422, 1095342925750005427965, 184246192159690980312976
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OFFSET
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0,5
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LINKS
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FORMULA
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E.g.f. of a(n+1): A(x)=(B(x)-1)/B(x) where B(x) is e.g.f. of A058164(n+1).
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CROSSREFS
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KEYWORD
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nonn,hard
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AUTHOR
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STATUS
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approved
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