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A121647 Sequence gives values of sigma(n)^2 divided by UnitarySigma(n)*UnitaryPhi(n) associated with n in A121556. 1
1, 3, 2, 6, 4, 3, 9, 2, 8, 6, 7, 4, 5, 12, 7, 3, 4, 10, 9, 7, 2, 5, 8, 6, 5, 14, 4, 10, 7, 5, 7, 5, 12, 10, 4, 3, 9, 14, 3, 10, 8, 10, 11, 15, 4, 9, 4, 2, 9, 3, 5, 6, 4, 7, 2, 8, 5, 15, 4, 11, 4, 5, 10, 16, 7, 10, 6, 13, 9, 2, 6, 7, 5, 4, 4, 6, 2, 8, 2, 15, 5, 8, 4, 11, 10, 12, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..87.

CROSSREFS

Sequence in context: A057050 A182546 A123042 * A033940 A286367 A196047

Adjacent sequences:  A121644 A121645 A121646 * A121648 A121649 A121650

KEYWORD

nonn

AUTHOR

Yasutoshi Kohmoto Sep 12 2006

EXTENSIONS

Extended with the aid of b121556.txt. - R. J. Mathar, Sep 04 2018

STATUS

approved

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Last modified December 7 18:12 EST 2019. Contains 329847 sequences. (Running on oeis4.)