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A051479 Values of i such that phi(n)=4i+2 has 4 solutions. 1
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; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..32.

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.

Sequence in context: A136855 A136860 A136859 * A149204 A149205 A149206

Adjacent sequences:  A051476 A051477 A051478 * A051480 A051481 A051482

KEYWORD

nonn

AUTHOR

Jud McCranie

STATUS

approved

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Last modified December 5 13:26 EST 2019. Contains 329751 sequences. (Running on oeis4.)