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A129078 Prime numbers that are the sum of consecutive prime numbers with the final digit 3 (primes in A030431). 2

%I #7 Nov 21 2013 12:49:04

%S 3,1259,51241,81749,230149,245621,253567,269879,286801,331301,482731,

%T 540041,551917,564013,625943,638669,746777,975427,1093129,1145537,

%U 1181149,1272679,1528187,1569479,1675679,1741517,1970867,2066951

%N Prime numbers that are the sum of consecutive prime numbers with the final digit 3 (primes in A030431).

%F a(n)=A030431(1)+A030431(2)+...+A030431(x); a is a prime number.

%e a(2)=1259 because 1259=A030431(1)+ A030431(2)+A030431(3)+A030431(4)+ A030431(5)+A030431(6)+A030431(7)+ A030431(8)+A030431(9)+A030431(10)+A030431(11)+A030431(12)+A030431(13)= 3+ 13+ 23+ 43+ 53+ 73+ 83+ 103+ 113+ 163+ 173+ 193+ 223 and 1259 is a prime number.

%t Select[Accumulate[Select[10Range[0,1500]+3,PrimeQ]],PrimeQ] (* _Harvey P. Dale_, Apr 06 2011 *)

%Y Cf. A030431; A000040.

%K easy,base,nonn

%O 1,1

%A _Tomas Xordan_, May 11 2007

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)