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First occurrence from iterated procedure 'composite k added to sum of its prime factors reaches a prime' yielding n skipped primes.
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%I #11 Oct 17 2019 22:42:33

%S 38400,6,10,26,8,18,4,39,16,30,27,32,126,76,92,87,63,77,122,49,62,120,

%T 56,50,45,117,110,196,88,102,75,246,171,72,70,234,60,469,66,217,260,

%U 198,244,387,550,230,528,362,519,764,500,494,566,376,548,386,526,481

%N First occurrence from iterated procedure 'composite k added to sum of its prime factors reaches a prime' yielding n skipped primes.

%H C. Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_066.htm">Puzzle 66 - The SOPF sequences</a>

%e a(1)=38400 + (2+2+2+2+2+2+2+2+2+3+5+5) = 38431. '0' primes between 38400 and 38431.

%e a(2)=6 + (2+3) = 11. '1' prime between 6 and 11.

%e a(3)=10 + (2+5) = 17. '2' primes between 10 and 17.

%t a[n_]:=Length[Select[Range[n+1,NestWhile[#+Total[Times@@@FactorInteger[#]]&,n,!PrimeQ[#]&]-1],PrimeQ]]; t={38400}; Do[i=4; While[a[i]!=k,If[PrimeQ[i+1],i+=2,i++]]; AppendTo[t,i],{k,57}]; t (* _Jayanta Basu_, Jun 01 2013 *)

%Y Cf. A050765, A050768-A050776, A050703.

%K nonn

%O 0,1

%A _Patrick De Geest_, Sep 15 1999