1,5

Count prime pairs below 10^n having a difference of 52

a(5)=7 because there are 7 prime gaps of 52 below 10^5

Sequence in context: A107866 A034176 A001765 this_sequence A077706 A080492 A082782

Adjacent sequences: A093977 A093978 A093979 this_sequence A093981 A093982 A093983

nonn

Enoch Haga (Enokh(AT)comcast.net), Apr 24 2004