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A053013
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Positions in decimal expansion of Pi where next prime begins.
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6
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1, 2, 7, 8, 11, 12, 14, 15, 19, 3076, 3077, 3078, 3081, 3082, 3083, 3831, 3833, 3835, 3836, 3838, 3921, 3926, 3927, 3929, 4000, 4010, 4011, 4012, 4014, 4016, 4018, 4019, 4020, 4023, 4024, 4038, 4040, 4045, 4096, 4097, 4103, 4104, 4110, 4113, 4115, 4124
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OFFSET
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1,2
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COMMENTS
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This sequence refers to a variant of A047777 in which one does not require that all primes are distinct. See A229181 for first differences of this sequence. - M. F. Hasler, Sep 15 2013
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LINKS
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FORMULA
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MATHEMATICA
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A229181 = {1}; digits = Join[{{1}}, RealDigits[Pi, 10, 5000] // First // Rest]; digits //. {a:({_Integer..}..), b__Integer /; PrimeQ[FromDigits[{b}]], c___Integer} :> (Print[lg = {b} // Length]; AppendTo[A229181, lg]; {{1}, c}) ; Join[{1}, Accumulate[A229181] + 1] (* Jean-François Alcover, Oct 17 2013 *)
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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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