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A287882 a(n) = Sum_{ i <= n, i squarefree} A080670(i). 3
1, 3, 6, 6, 11, 34, 41, 41, 41, 66, 77, 77, 90, 117, 152, 152, 169, 169, 188, 188, 225, 436, 459, 459, 459, 672, 672, 672, 701, 936, 967, 967, 1278, 1495, 1552, 1552, 1589, 1808, 2121, 2121, 2162, 2399, 2442, 2442, 2442, 2665, 2712, 2712, 2712, 2712, 3029, 3029, 3082, 3082, 3593, 3593, 3912 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A lower bound on A287881.

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 1..20000

CROSSREFS

Cf. A080670, A287881.

Sequence in context: A201155 A200534 A184284 * A066297 A160713 A279625

Adjacent sequences:  A287879 A287880 A287881 * A287883 A287884 A287885

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 19 2017

STATUS

approved

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Last modified March 26 20:47 EDT 2019. Contains 321535 sequences. (Running on oeis4.)