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A227535
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Exponents e such that n^e is the least totient for some even n and all even k < n have a totient of the form k^f for some f < e.
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2
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2, 3, 4, 5, 15, 17, 23, 42, 44, 47, 68, 80, 107, 130, 142, 162, 184
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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PROG
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(PARI) r=0; forstep(n=2, 1e5, 2, t=1; while(!istotient(n^t++), ); if(t>r, r=t; print1(t", ")))
\\ See also A227533 for a more efficient method of computing terms.
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CROSSREFS
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KEYWORD
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nonn,hard
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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