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Search: id:A051479
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A051479 Values of i such that phi(n)=4i+2 has 4 solutions. +0
2
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 (list; graph; listen)
OFFSET

1,2

EXAMPLE

phi(n)=4*1+2 has 4 solutions (n=7,9,14,18), so 1 is in the sequence.

CROSSREFS

Cf. A000010, A032446, A051478.

Adjacent sequences: A051476 A051477 A051478 this_sequence A051480 A051481 A051482

Sequence in context: A136855 A136860 A136859 this_sequence A053792 A032121 A007173

KEYWORD

nonn

AUTHOR

Jud McCranie (j.mccranie(AT)comcast.net)

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Last modified October 9 14:06 EDT 2008. Contains 144831 sequences.


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