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A073263 Integer quotients of partial sum of first n composite and n (see A053781). 3
4, 5, 6, 9, 12, 52, 75, 80, 95, 105, 422, 1002, 2841, 12165, 16944, 170997, 430041, 5844984, 11095683, 71438394, 86938085, 485470043, 3341061731, 11203279551, 25053055391, 29329179630, 150058180590, 278953774325, 771115150044 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..29.

FORMULA

a(n)=A073262(n)/A053781(n)

MATHEMATICA

s=0; Do[s=s+FixedPoint[n+PrimePi[ # ]+1&, n]; If[IntegerQ[s/n], k=k+1; t[[k]]=s/n; Print[s/n]], {n, 1, 12000000}]

CROSSREFS

Cf. A002808, A053781, A073255-A073262.

Sequence in context: A145025 A245236 A209122 * A039013 A241511 A020669

Adjacent sequences:  A073260 A073261 A073262 * A073264 A073265 A073266

KEYWORD

nonn

AUTHOR

Labos Elemer, Jul 22 2002

EXTENSIONS

a(17) - a(19) from Klaus Brockhaus, Aug 12 2009

a(20)-a(26) from Ray Chandler, Jul 19 2010

a(27)-a(29) from Donovan Johnson, May 23 2011

STATUS

approved

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Last modified February 27 19:10 EST 2020. Contains 332308 sequences. (Running on oeis4.)