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A167794
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Numbers with primitive root 6.
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20
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11, 13, 17, 41, 59, 61, 79, 83, 89, 103, 107, 109, 113, 121, 127, 131, 137, 151, 157, 169, 179, 199, 223, 227, 229, 233, 251, 257, 271, 277, 289, 347, 367, 373, 397, 401, 419, 443, 449, 467, 487, 491, 521, 563, 569, 587, 593, 613, 641, 659, 661, 683, 709, 733
(list;
graph;
refs;
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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MAPLE
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option remember;
if n =1 then
11;
else
for a from procname(n-1)+1 do
if numtheory[order](6, a) = numtheory[phi](a) then
return a;
end if;
end do:
end if;
end proc:
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MATHEMATICA
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pr=6; Select[Range[2, 2000], MultiplicativeOrder[pr, # ] == EulerPhi[ # ] &]
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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