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A052235 Primes p from A031924 such that A052180(primepi(p)) = 19. 0

%I #12 Jun 07 2018 02:56:06

%S 433,587,1117,2411,4007,4993,5107,5147,5563,6703,6857,6971,7541,10847,

%T 12973,14951,18787,21221,24373,24527,27947,29201,30341,30643,30757,

%U 36913,37483,38321,39877,40487,42767,43451,45007,46301,47287,48883,49037

%N Primes p from A031924 such that A052180(primepi(p)) = 19.

%t Reap[For[p = 23, p < 50000, p = q, q = NextPrime[p]; If[q == p + 6 && Max[ FactorInteger[#][[1, 1]]& /@ Range[p+1, q-1]] == 19, Sow[p]]]][[2, 1]] (* _Jean-François Alcover_, Jan 29 2018 *)

%Y Cf. A031924, A031925.

%K nonn

%O 1,1

%A _Labos Elemer_, Feb 01 2000

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)