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A034101
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Numbers whose fractional part of square root starts with digit 5.
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3
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21, 31, 43, 57, 73, 91, 92, 111, 112, 133, 134, 157, 158, 183, 184, 211, 212, 213, 241, 242, 243, 273, 274, 275, 307, 308, 309, 343, 344, 345, 381, 382, 383, 384, 421, 422, 423, 424, 463, 464, 465, 466, 507, 508, 509, 510, 553, 554, 555, 556, 601, 602, 603
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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fp5Q[n_]:=Module[{rd=RealDigits[N[FractionalPart[Sqrt[n]]]]}, rd[[2]]==0 && First[rd[[1]]]==5]; Select[Range[700], fp5Q] (* Harvey P. Dale, Jan 11 2013 *)
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CROSSREFS
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KEYWORD
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nonn,easy,base
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AUTHOR
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STATUS
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approved
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