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A103504
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Integers that do not appear in A103502.
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2
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123, 1298, 4929, 9516, 10066, 14192, 15830, 15887, 17854, 20007, 23394, 24574, 27441, 31932, 33377, 33381, 33933, 35594, 35978, 37075, 40139, 40931, 41205, 43573, 45147, 47661, 47749, 48286, 48444, 48941, 50580, 51659, 52377, 59375, 61260, 61726, 62465, 63063
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OFFSET
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1,1
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COMMENTS
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LINKS
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MATHEMATICA
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Restop = Function[n, pp = Prime[Range[PrimePi[n]]]; Sum[n/pp[[k]] - Floor[n/pp[[k]]], {k, 1, Length[pp]}]]; oops = Floor[Map[Restop, Range[1, 30000]]]; Complement[Range[Max[oops]], Union[oops]]
f[n_] := Floor[Plus @@ FractionalPart[n / Table[ Prime[i], {i, PrimePi[n]}]]]; Do[ a = f[n]; If[ Position[t, a] == {}, AppendTo[t, a]], {n, 81900}]; Complement[ Range[ Sort[t][[ -1]]], t] (* Robert G. Wilson v, Feb 12 2005 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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