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A266242
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Numbers n such that the initial digit of the fractional part of n*Pi is 0.
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2
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0, 36, 43, 50, 57, 64, 71, 78, 85, 92, 99, 106, 149, 156, 163, 170, 177, 184, 191, 198, 205, 212, 219, 262, 269, 276, 283, 290, 297, 304, 311, 318, 325, 332, 375, 382, 389, 396, 403, 410, 417, 424, 431, 438, 445, 488, 495, 502, 509, 516, 523, 530, 537
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OFFSET
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1,2
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COMMENTS
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Because 22/7 is so close to Pi, a(n+1) - a(n) is very often 7.
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LINKS
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EXAMPLE
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36*Pi = 113.09... so 36 is in the sequence.
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MAPLE
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select(t -> floor(10*t*Pi) mod 10 = 0, [$0..1000]);
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PROG
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(PARI) for(n=0, 1e3, if(floor(10*n*Pi) % 10 == 0, print1(n", "))); \\ Altug Alkan, Dec 25 2015
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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