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A084298 Integer quotients pi(m*prime(m))/m. 1

%I #17 May 14 2020 17:21:45

%S 1,2,26,48,108,292,6471,8147,20745,30803,38806,79760,254050

%N Integer quotients pi(m*prime(m))/m.

%F a(n) = A000720(A084295(n)*A084297(n))/A084295(n).

%t Do[s=PrimePi[n*Prime[n]]/n; If[IntegerQ[s], Print[s]], {n, 1, 100000}]

%Y Cf. A000040, A000720, A057855, A084295, A084297.

%K nonn,more

%O 1,2

%A _Labos Elemer_, May 27 2003

%E a(9)-a(12) from _Giovanni Resta_, Sep 02 2019

%E a(13) from _Chai Wah Wu_, May 14 2020

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)