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A092837
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Indices of terms in the series for sec(x) that have prime numerators.
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0
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2, 3, 4, 19, 24, 227, 255, 443, 1381, 3329, 3817, 3947
(list;
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listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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Eric Weisstein's World of Mathematics, Secant
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MATHEMATICA
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f[n_] := Numerator[EulerE[2n]/(2n)! ]; Do[If[PrimeQ[f[n]], Print[n]], {n, 3329}] (* Ryan Propper, Apr 01 2007 *)
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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