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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 MATHEMATICA A080670 = Cases[Import["https://oeis.org/A080670/b080670.txt", "Table"], {_, _}][[All, 2]]; Accumulate[Table[If[SquareFreeQ[n], A080670[[n]], 0], {n, 57}] ] (* Robert Price, Mar 16 2020 *) CROSSREFS Cf. A080670, A287881. Sequence in context: A200534 A138743 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 October 2 22:30 EDT 2023. Contains 365841 sequences. (Running on oeis4.)