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A333831 Dirichlet inverse of Mertens function (A002321). 1
1, 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 4, 3, 2, 5, 2, 2, 4, 3, 7, 6, 1, 2, 8, 6, 1, 6, 5, 2, 9, 4, 8, 7, 2, 9, 13, 2, 1, 6, 10, 1, 10, 3, 7, 19, 2, 3, 16, 7, 7, 6, 8, 3, 14, 10, 14, 7, 0, 1, 31, 2, 1, 19, 8, 12, 7, 2, 6, 5, 14, 3, 35, 4, 3, 23, 9, 10, 11, 4, 24 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Florian Lang, Table of n, a(n) for n = 1..9998

PROG

(PARI) seq(n)={dirdiv(vector(n, n, n==1), vector(n, n, sum(k=1, n, moebius(k))))} \\ Andrew Howroyd, Apr 07 2020

CROSSREFS

Cf. A002321.

Sequence in context: A086421 A290399 A109400 * A202389 A210868 A176853

Adjacent sequences:  A333828 A333829 A333830 * A333832 A333833 A333834

KEYWORD

sign,easy

AUTHOR

Florian Lang, Apr 07 2020

STATUS

approved

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Last modified July 31 06:15 EDT 2021. Contains 346369 sequences. (Running on oeis4.)