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%I #5 Feb 21 2017 10:28:23
%S 1,1,2,1,4,3,4,2,1,3,1,2,3,10,4,7,4,3,2,1,2,18,2,2,17,1,2,6,9,3,1,1,1,
%T 8,3,2,15,1,4,1,1,7,7,4,4,3,4,1,1,7,2,5,1,5,18,2,5,4,3,1,5,1,18,12,2,
%U 8,1,4,2,5,4,1,1,1,9,10
%N Number of primes between successive pairs of twin primes, for a(n) > 0.
%C a(k) corresponds to the k-th term in the isolated prime sequence A007510 or A134797. a(1) corresponds to 23. a(2) corresponds to 37. a(3) corresponds to 47 and 53. - _Enrique Navarrete_, Jan 28 2017
%C Lengths of the runs of consecutive integers in A176656. - _R. J. Mathar_, Feb 19 2017
%H C. K. Caldwell, <a href="http://primes.utm.edu">The Prime Pages</a>.
%H Omar E. Pol, <a href="http://www.polprimos.com">Determinacion geometrica de los numeros primos y perfectos</a>.
%Y Cf. A001223, A007510 (isolated primes), A027883, A048614, A048198, A052011, A052012, A061273, A076777, A073784, A082602, A088700, A179067 (clusters of twin primes).
%K easy,nonn
%O 1,3
%A _Omar E. Pol_, Aug 23 2007
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