A086834 - OEIS

%I #3 Mar 30 2012 18:50:37

%S 0,0,0,0,2,0,0,3,0,2,0,5,0,0,3,0,2,7,0,0,0,0,5,11,0,3,0,2,0,13,7,0,0,

%T 0,0,5,0,0,3,0,2,19,0,0,0,0,0,7,13,0,0,23,5,0,0,3,0,2,17,11,0,0,0,0,0,

%U 0,7,31,0,0,19,5,0,0,3,0,2,37,0,0,0,0,11,41,0,0,0,17,0,7,0,0,0,0,5,0

%N Smallest prime that is the smallest of at least two consecutive primes with sum=n; a(n)=0 if no consecutive primes with sum=n exist.

%C a(n) = 0 iff A084143(n) = 0.

%e n = 72 = 5+7+11+13+17+19 = 13+17+19+23, as 5<13: a(72) = 5.

%K nonn

%O 1,5

%A _Reinhard Zumkeller_, Aug 08 2003