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A291321
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Numbers m with the property that shifting the rightmost digit of m to the left end multiplies the number by 8.
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4
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1012658227848, 1139240506329, 10126582278481012658227848, 11392405063291139240506329, 101265822784810126582278481012658227848, 113924050632911392405063291139240506329, 1012658227848101265822784810126582278481012658227848
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OFFSET
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1,1
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COMMENTS
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x = (10^12 - 8)/79 = 12658227848.
a(1) = 8*x*10 + 8, a(2) = 9*x*10 + 9.
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LINKS
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FORMULA
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a(2*k - 1) = 8*(10^(13*k) - 1)/79.
a(2*k) = 9*(10^(13*k) - 1)/79.
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EXAMPLE
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b = 101265822784.
a(1) = b*10 + 8,
8*a(1) = 8101265822784 = 8*10^12 + b.
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PROG
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CROSSREFS
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KEYWORD
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nonn,base,easy
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AUTHOR
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STATUS
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approved
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