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A340551
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Decimal expansion of 1 / Product_{primes p == 5, 7, 11 (mod 12)} 1/(1 - 1/p^2).
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1
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9, 1, 8, 8, 3, 3, 0, 9, 9, 9, 2, 9, 1, 4, 8, 7, 2, 4, 4, 2, 5, 6, 6, 3, 1, 5, 0, 7, 5, 3, 3, 9, 8, 8, 4, 7, 3, 2, 7, 1, 9, 3, 7, 0, 6, 1, 4, 4, 0, 6, 9, 0, 2, 4, 3, 1, 3, 3, 4, 8, 7, 4, 1, 7, 1, 3, 5, 8, 9, 6, 0, 8, 3, 6, 9, 8, 5, 7, 1, 7, 1, 2, 1, 3, 1, 9, 1, 8, 7
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OFFSET
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0,1
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LINKS
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FORMULA
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A340551^(-1/2) = A301430 / (3^(1/4)*Pi^(1/2)*log(2+sqrt(3))^(1/4)/(2^(5/4)* Gamma(1/4))), see É. Fouvry et al.
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EXAMPLE
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0.9188330999291487244256631507533988473271937061440690243133487417135896...
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MATHEMATICA
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$MaxExtraPrecision = 1000; digits = 90;
digitize[c_] := RealDigits[Chop[N[c, digits]], 10, digits - 1][[1]];
digitize[(Z[12, 5, 2] Z[12, 7, 2] Z[12, 11, 2])^(-1)]
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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