A154423 Continue with summing & priming the A154422 (Level 4) list to level 5.

2, 50575480513, 1663807730918617976723, 14304824932873646803553, 28817336920092499216069, 20284632396728311969809131, 168804229342169123733371839, 909257309497199880752121319

Offset

1,1

Comments

See comments on A153089.

Summed primes found after processing (probable) Prime[] :

2, @Prime[1]

50575480513, @Prime[4722]

1663807730918617976723, @Prime[1974210]

14304824932873646803553, @Prime[2903172]

28817336920092499216069, @Prime[3420082]

20284632396728311969809131, @Prime[15247238]

168804229342169123733371839, @Prime[22642082]

909257309497199880752121319, @Prime[33274714]

9026355522011136010570106131, @Prime[53094426]

12263815980529982423068511467, @Prime[57000046]

21387636949994500797850359181, @Prime[65006502]

56131334772184677703527026147, @Prime[78661050]

62292259347481056139884911863, @Prime[81244070]

83034816090925278171614867177, @Prime[85729684]

155030914145470518313682423747, @Prime[96915920]

197999545090257302363521955417, @Prime[101294198]

253698723331018987460955136741, @Prime[106154766]

425504333192275826687012761279, @Prime[122033702]

482627861344449877955168125963, @Prime[124661548]

589741242267992002144967999423, @Prime[129872416]

619685334968034352750914408883, @Prime[131898052]

721898204498044322321900684473, @Prime[134793368]

905024448001289513576258053853, @Prime[140868154]

Links

Table of n, a(n) for n=1..8.

Mathematica

lst2={}; s2=0; Do[s2=s2+Prime[n]; If[PrimeQ[s2], AppendTo[lst2, s2]], {n, 4000000}]; 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; lst5={}; s5=0; Do[s5=s5+lst4[[n]]; If[PrimeQ[s5], AppendTo[lst5, s5]], {n, 1, Length[lst4]}]; lst5

Crossrefs

A000040(Level 1),A013918(Level 2),A153089(Level 3),A154422(Level 4),A154424(Level 6)

Sequence in context: A109741 A105759 A154422 * A072293 A158343 A303008

Adjacent sequences: A154420 A154421 A154422 * A154424 A154425 A154426

Keyword

nonn

Author

Michael J Crowe (michaelcrowe117(AT)btinternet.com), Jan 09 2009

Status

approved