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A066698
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Numbers k such that Euler phi(k) / Carmichael lambda(k) = 34.
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0
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14111, 24617, 28222, 29767, 32743, 42059, 45629, 49234, 59534, 60691, 65486, 66641, 69071, 73373, 84118, 88639, 88723, 91258, 97751, 98159, 105877, 121382, 125903, 128027, 129677, 133282, 136001, 138142, 140183, 146507, 146746, 153851
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[ Range[2 10^5], EulerPhi[ # ] == 34CarmichaelLambda[ # ] &]
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PROG
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(PARI) {cmf(f)=if( ((f[1]==2)&&(f[2]>2)), eulerphi(f[1]^f[2])/2, eulerphi(f[1]^f[2])) }
{cl(f)= k=factor(f); l=1; for(x=1, omega(f), l=lcm(l, cmf([k[x, 1], k[x, 2]]))); l }
{A0(n)=eulerphi(n)/cl(n)}
for(x=1, 30001, if(A0(x)==34, print1(x, ", ")))
(PARI) isok(k) = eulerphi(k)/lcm(znstar(k)[2]) == 34; \\ Michel Marcus, May 25 2022
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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