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A209248
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a(n) = 2^(2^n - 2*n - 1).
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0
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OFFSET
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3,1
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COMMENTS
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a(n) = 2^A070313(n). Krotov on p. 2: "in general, two extended Hamming codes can intersect in 2^(2^m - 2m - 1) elements."
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LINKS
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EXAMPLE
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a(5) = 2^(2^5 - 2*5 - 1) = 2^21 = 2097152.
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MATHEMATICA
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PROG
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(Maxima) makelist(floor(2^(2^n-2*n-1)), n, 3, 8); /* Martin Ettl, Jan 25 2013 */
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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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