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A076511 Numerator of cototient(n)/totient(n). 5
0, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 2, 1, 4, 7, 1, 1, 2, 1, 3, 3, 6, 1, 2, 1, 7, 1, 4, 1, 11, 1, 1, 13, 9, 11, 2, 1, 10, 5, 3, 1, 5, 1, 6, 7, 12, 1, 2, 1, 3, 19, 7, 1, 2, 3, 4, 7, 15, 1, 11, 1, 16, 3, 1, 17, 23, 1, 9, 25, 23, 1, 2, 1, 19, 7, 10, 17, 9, 1, 3, 1, 21, 1, 5, 21, 22, 31, 6, 1, 11, 19, 12, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65537

FORMULA

a(n) = A051953(n)/A009195(n).

PROG

(PARI) A076511(n) = numerator((n-eulerphi(n))/eulerphi(n)); \\ Antti Karttunen, Sep 07 2018

CROSSREFS

Cf. A076512 (denominators), A000010, A009195, A051953, A109395.

Sequence in context: A330755 A316431 A319567 * A280688 A285728 A157925

Adjacent sequences:  A076508 A076509 A076510 * A076512 A076513 A076514

KEYWORD

nonn,frac

AUTHOR

Reinhard Zumkeller, Oct 15 2002

STATUS

approved

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Last modified October 21 05:28 EDT 2021. Contains 348141 sequences. (Running on oeis4.)