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A051479
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Values of i such that phi(n)=4i+2 has 4 solutions.
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1
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1, 4, 10, 40, 121, 364, 1105, 1540, 3601, 4795, 5662, 6601, 9841, 19414, 35815, 103201, 131950, 141224, 210910, 245272, 378532, 505876, 613480, 762565, 986545, 1010527, 1147576, 1252720, 1732847, 1750990, 1766905, 1798951
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OFFSET
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1,2
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LINKS
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EXAMPLE
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phi(n)=4*1+2 has 4 solutions (n=7,9,14,18), so 1 is in the sequence.
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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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