Search: id:A154422
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%I A154422
%S A154422 2,50575480511,158413287841,379787123171,88082548147771,
%T A154422 3939163325960453,4342203121792903,41672041797268133,92013021551247323,
%U A154422 145937058697288751,157891295660264779,270930872865589619
%N A154422 Continue with summing & priming the A153089 (level 3) list to level 4.
%C A154422 See comments in A153089.
%H A154422 M. J. Crowe, <a href="b154422.txt">Table of n, a(n) for n=1,...,10000</
               a>
%t A154422 lst2={}; s2=0; Do[s2=s2+Prime[n]; If[PrimeQ[s2], AppendTo[lst2, s2]], 
               {n, 1000000}]; lst3={}; s3=0; Do[s3=s3+lst2[[n]];If[PrimeQ[s3], AppendTo[lst3, 
               s3]], {n,1,Length[lst2]}]; lst3; lst4={}; s4=0; Do[s4=s4+lst3[[n]];
               If[PrimeQ[s4], AppendTo[lst4, s4]], {n,1,Length[lst3]}]; lst4
%Y A154422 A000040(Level 1),A013918(Level 2),A153089(Level 3),A154423(Level 5),A154424(Level 
               6)
%Y A154422 Sequence in context: A094486 A109741 A105759 this_sequence A154423 A072293 
               A158343
%Y A154422 Adjacent sequences: A154419 A154420 A154421 this_sequence A154423 A154424 
               A154425
%K A154422 nonn
%O A154422 1,1
%A A154422 Michael J. Crowe (michaelcrowe117(AT)btinternet.com), Jan 09 2009

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