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A034133
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Decimal part of cube root of a(n) starts with 7: first term of runs.
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1
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5, 20, 51, 104, 186, 301, 457, 659, 913, 1226, 1602, 2049, 2572, 3177, 3870, 4658, 5546, 6540, 7646, 8870, 10219, 11698, 13313, 15070, 16975, 19035, 21254, 23640, 26199, 28935, 31856, 34966, 38273, 41782, 45500, 49431, 53583, 57961, 62571
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..39.
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MATHEMATICA
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Join[{5}, (If[#[[2]]-#[[1]]==1, Nothing, #]&/@Partition[Select[Range[ 63000], NumberDigit[ Surd[#, 3], -1]==7&], 2, 1])[[All, 2]]] (* Requires Mathematica version 12 or later *) (* Harvey P. Dale, Jul 17 2021 *)
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CROSSREFS
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Cf. A034123.
Sequence in context: A190094 A134481 A062158 * A006504 A007045 A102227
Adjacent sequences: A034130 A034131 A034132 * A034134 A034135 A034136
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KEYWORD
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nonn,base
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AUTHOR
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Patrick De Geest, Sep 15 1998
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STATUS
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approved
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