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1, 17, 49, 113, 194, 322, 565, 821, 1333, 1958, 2687, 3711, 5007, 7055, 9242, 11643, 14235, 17360, 21248, 25344, 30528, 37089, 44865, 53057, 63057, 73425, 85089, 99730, 115282, 130907, 147291, 164098, 183781, 203781, 224517, 247845, 276406
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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Amiram Eldar, Table of n, a(n) for n = 1..10000
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FORMULA
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a(n) = Sum_{i=1..n} A036967(i).
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EXAMPLE
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a(11) = 1 + 16 + 32 + 64 + 81 + 128 + 243 + 256 + 512 + 625 + 729 = 2687.
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MATHEMATICA
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Accumulate @ Select[Range[25000], # == 1 || Min[FactorInteger[#][[;; , 2]]] > 3 &] (* Amiram Eldar, Feb 07 2023 *)
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CROSSREFS
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Cf. A000583, A001694, A036966, A036967.
Sequence in context: A181426 A029487 A069129 * A124710 A113867 A049737
Adjacent sequences: A176270 A176271 A176272 * A176274 A176275 A176276
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KEYWORD
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easy,nonn
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AUTHOR
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Jonathan Vos Post, Apr 14 2010
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STATUS
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approved
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