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A111323 Numbers n such that 9 divides prime(1)+...+prime(n). 0

%I

%S 20,24,26,30,40,42,52,74,78,80,88,113,119,127,163,177,179,187,205,207,

%T 242,248,254,258,260,262,268,270,280,282,284,288,297,311,331,357,368,

%U 372,380,394,398,400,410,412,416,428,436,443,457,466,468,470,474,490,496,505,509

%N Numbers n such that 9 divides prime(1)+...+prime(n).

%t Flatten[Position[Accumulate[Prime[Range[509]]]/9,_Integer]] (* _Jayanta Basu_, May 18 2013 *)

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Nov 05 2005

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Last modified October 21 09:09 EDT 2020. Contains 337911 sequences. (Running on oeis4.)