%I A028334 N0030
%S A028334 1,1,2,1,2,1,2,3,1,3,2,1,2,3,3,1,3,2,1,3,2,3,4,2,1,2,1,2,7,2,3,1,5,1,
%T A028334 3,3,2,3,3,1,5,1,2,1,6,6,2,1,2,3,1,5,3,3,3,1,3,2,1,5,7,2,1,2,7,3,5,1,2,
%U A028334 3,4,3,3,2,3,4,2,4,5,1,5,1,3,2,3,4,2,1,2,6,4,2,4,2,3,6,1,9,3,5,3,3,1,3
%N A028334 Differences between consecutive primes, divided by 2.
%C A028334 With an initial zero, gives the numbers of even numbers between two successive 
               primes. - Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Nov 
               04 2005
%D A028334 M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, 
               National Bureau of Standards Applied Math. Series 55, 1964 (and various 
               reprintings), p. 870.
%D A028334 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%H A028334 T. D. Noe, <a href="b028334.txt">Table of n, a(n) for n=2..10000</a>
%H A028334 M. Abramowitz and I. A. Stegun, eds., <a href="http://www.nrbook.com/
               abramowitz_and_stegun/">Handbook of Mathematical Functions</a>, National 
               Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 
               [alternative scanned copy].
%t A028334 Table[ Floor[(Prime[n + 1] - Prime[n])/2], {n, 105}] (* Robert G. Wilson 
               v *)
%Y A028334 Cf. A005521.
%Y A028334 Equals 2*A001223 for n>1.
%Y A028334 Sequence in context: A023118 A122197 A030718 this_sequence A083269 A097306 
               A102632
%Y A028334 Adjacent sequences: A028331 A028332 A028333 this_sequence A028335 A028336 
               A028337
%K A028334 nonn
%O A028334 2,3
%A A028334 N. J. A. Sloane (njas(AT)research.att.com).