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A182336
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a(n) is the least m>=n, such that the Hamming distance D(n,m)=4.
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3
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15, 14, 13, 12, 11, 10, 9, 8, 19, 18, 17, 16, 17, 16, 16, 17, 31, 30, 29, 28, 27, 26, 25, 24, 33, 32, 32, 33, 32, 33, 34, 35, 47, 46, 45, 44, 43, 42, 41, 40, 51, 50, 49, 48, 49, 48, 48, 49, 63, 62, 61, 60, 59, 58, 57, 56, 64, 65, 66, 67, 68, 69, 70, 71, 79, 78, 77, 76, 75, 74
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OFFSET
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0,1
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COMMENTS
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Or (see comment in A206853) a(n)=n<+>4.
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LINKS
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PROG
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(PARI) hamming(n)=my(v=binary(n)); sum(i=1, #v, v[i])
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CROSSREFS
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Cf. A205509, A205510, A205511, A205302, A205649, A205533, A122565, A206852, A206853, A206960, A207063, A209544, A209554, A007814, A086799, A182187, A182209.
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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