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A239914
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Total number of preferential arrangements of 1, 2, ..., n things.
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3
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1, 4, 17, 92, 633, 5316, 52609, 598444, 7685705, 109933268, 1732565841, 29824133436, 556682481817, 11198025452260, 241481216430113, 5557135898411468, 135927902927547369, 3521462566184392692, 96323049885512803825, 2774010846129897006940
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OFFSET
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1,2
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COMMENTS
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Although A217389 = a(n)+1 already exists, it is this sequence that one really needs.
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LINKS
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FORMULA
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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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