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A103504 Integers that do not appear in A103502. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
For n>1873, A103502(n)>123 and for n>27763, A103502(n)>1298. - Michel Marcus, Feb 06 2014
LINKS
MATHEMATICA
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 *)
CROSSREFS
Cf. A103502.
Sequence in context: A174173 A116935 A265983 * A324627 A259907 A115983
KEYWORD
nonn
AUTHOR
Carlos Alves, Feb 08 2005
EXTENSIONS
a(3)-a(38) from Hiroaki Yamanouchi, Sep 23 2014
STATUS
approved

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Last modified June 17 07:23 EDT 2024. Contains 373433 sequences. (Running on oeis4.)