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A350294
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a(n) = floor(n*2^n/(n + 1)).
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2
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0, 1, 2, 6, 12, 26, 54, 112, 227, 460, 930, 1877, 3780, 7606, 15291, 30720, 61680, 123790, 248346, 498073, 998643, 2001826, 4011942, 8039082, 16106127, 32263876, 64623350, 129424237, 259179060, 518975214, 1039104990, 2080374784, 4164816771, 8337289456, 16689015778
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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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A350293(n) <= a(n) (see Lemma 1 in Harborth and Nienborg).
a(n) ~ 2^n.
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MAPLE
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f:= n -> floor(n*2^n/(n+1)):
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MATHEMATICA
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Table[Floor[n 2^n/(n+1)], {n, 0, 34}]
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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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