A086834 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.

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, 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, 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

Offset: 1

Author

Reinhard Zumkeller, Aug 08 2003

Keywords

• nonn

Comments

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

Examples

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