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Distances to next prime associated with A135731.
1

%I #5 Mar 31 2012 10:32:41

%S 2,1,3,1,3,1,3,5,1,5,3,1,3,5,5,1,5,3,1,5,3,5,7,3,1,3,1,3,13,3,5,1,9,1,

%T 5,5,3,5,5,1,9,1,3,1,11,11,3,1,3,5,1,9,5,5,5,1,5,3,1,9,13,3,1,3,13,5,

%U 9,1,3,5,7,5,5,3,5,7,3,7,9,1,9,1,5,3,5,7,3,1,3,11,7,3,7,3,5,11

%N Distances to next prime associated with A135731.

%C Essentially the same as A046933. [From _R. J. Mathar_, Oct 28 2008]

%F Beginning with prime=2, the first n after 2 is 3 and from n=3 to next prime >n is 5, with distance from 3 to 5=2. Next n after prime=5 is 6, so that distance to next prime 7 = 1.

%e a(2)=3 because when n=8 (8 is next n after prime 7), next prime is 11 and distance is 3

%Y Cf. A135731.

%K easy,nonn

%O 1,1

%A _Enoch Haga_, Nov 26 2007