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A342174 Primes in A342173. 1

%I

%S 3,11,23,43,53,71,107,229,241,269,293,313,643,701,857,883,1109,1361,

%T 1601,1693,1697,1721,1867,2267,2621,2719,2767,2789,2971,3067,3137,

%U 3169,3529,3533,3557,3739,3767,4007,4093,4139,4153,4219,4337,4423,4447,4451,4517,4663,4787,4943,5279,5387,5501

%N Primes in A342173.

%H Robert Israel, <a href="/A342174/b342174.txt">Table of n, a(n) for n = 1..1000</a>

%e The first three primes in A342173 are a(1) = A342173(3) = 3, a(2) = A342173(5) = 11, and a(3) = A342173(8) = 23.

%p f:= proc(n) local t, i, s;

%p t:= ithprime(n);

%p add(floor(t/ ithprime(i)), i=1..n-1)

%p end proc:

%p select(isprime, map(f,[$1..100]));

%Y Cf. A342173.

%K nonn

%O 1,1

%A _J. M. Bergot_ and _Robert Israel_, Mar 03 2021

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Last modified May 24 02:47 EDT 2022. Contains 354005 sequences. (Running on oeis4.)