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A115712
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Semiprimes (A001358) whose digit reversal is a cube.
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1
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10, 46, 215, 3194, 9586, 27845, 35605, 40393, 52651, 63379, 70597, 76121, 84601, 98342, 119753, 189622, 211591, 234413, 291149, 376219, 485038, 616571, 778841, 886877, 946711, 2134493, 2198998, 2579365, 3405221, 3735467, 4430089
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OFFSET
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1,1
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LINKS
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EXAMPLE
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46=2*23 is semiprime and 64=4^3.
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MATHEMATICA
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Select[Range[5*10^6], PrimeOmega[#]==2&&IntegerQ[Surd[ IntegerReverse[ #], 3]]&] (* The program uses the IntegerReverse function from Mathematica version 10 *) (* Harvey P. Dale, Jan 18 2016 *)
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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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