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A287281
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Number of set partitions of [n] such that for each block all absolute differences between consecutive elements are <= nine.
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4
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1, 1, 2, 5, 15, 52, 203, 877, 4140, 21147, 115975, 657423, 3827518, 22762925, 137649001, 843059144, 5212898020, 32457312604, 203096802134, 1275403897840, 8030979290267, 50672180941765, 320201670174878, 2025623521511803, 12824705758528817, 81244888488645467
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listen;
history;
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internal format)
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OFFSET
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0,3
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LINKS
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FORMULA
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G.f.: see link above.
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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