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%I #5 Oct 12 2013 15:14:04
%S 1,1,2,2,2,2,3,3,3,4,4,4,5,5,6,6,6,6,6,6,7,7,9,9,10,10,10,10,10,10,12,
%T 13,14,15,18,20,21,23,23,23,25,28,28,29,29,32,33,35,37,38,39,41,43,45,
%U 47,50,55,57,62,62,66,73,79,92,101,106,108,115,121,123,126,131,140,141
%N Number of digits in terms of A087732.
%C Number of digits of the twin primes of the form j*P(i)# - 1 and j*P(i)# + 1 with 0 < j < P(i+1), P(i)= i rank primes, P(i)# = primorial of P(i) (A002110).
%e a(23)=9 since A087732(23)=106696589 has 9 digits.
%e a(31)=12 since A087732(31)=103515091679 has 12 digits.
%Y Cf. A086916, A087651, A087730, A087731, A087732, A088676.
%K nonn,base
%O 1,3
%A _Pierre CAMI_, Sep 25 2003
%E Edited by _Ray Chandler_, Oct 05 2003
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