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A094386
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a(n) = floor(sqrt(3)*2^(n-1)).
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6
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1, 3, 6, 13, 27, 55, 110, 221, 443, 886, 1773, 3547, 7094, 14188, 28377, 56755, 113511, 227023, 454046, 908093, 1816186, 3632373, 7264747, 14529495, 29058990, 58117981, 116235962, 232471924, 464943848, 929887696, 1859775393, 3719550786
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OFFSET
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1,2
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LINKS
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FORMULA
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MATHEMATICA
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PROG
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(PARI) a(n) = floor(sqrt(3)*2^(n-1)); \\ Michel Marcus, Sep 20 2017
(Python)
from math import isqrt
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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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