OFFSET
1,1
LINKS
Metin Sariyar, Table of n, a(n) for n = 1..2000
EXAMPLE
2+3 = 5 (prime); start from 2, sum of two consecutive primes is prime.
5+7+11+13+17 = 53 (prime); start from 5, sum of five consecutive primes is prime;
11+13+17+19+23+29+31+37+41+43+47 = 311 (prime); start from 11, sum of eleven consecutive primes is prime;
19+23+29+31+37+41+43+47+53+59+61+67+71+73+79+83+89+97+101 = 1103 (prime); start from 19, sum of 19 consecutive primes is prime.
MATHEMATICA
lst={}; Do[s=0; Do[p=Prime[n]; If[s==0, p0=p]; s+=p, {n, a, a+Prime[a]-1}]; If[PrimeQ[s], AppendTo[lst, s]], {a, 1, 6!}]; lst
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Joseph Stephan Orlovsky, Dec 05 2008
STATUS
approved