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%I #3 Mar 30 2012 18:38:14
%S 3,5,5,7,7,7,11,11,13,11,13,11,13,17,11,13,17,19,13,17,19,13,17,19,23,
%T 17,19,23,17,19,23,17,19,23,29,17,19,23,29,31,19,23,29,31,19,23,29,31,
%U 23,29,31,37,23,29,31,37,23,29,31,37,41,23,29,31,37,41,43,29,31,37,41
%N Table read by rows: row n contains the primes between n and 2n.
%C See A108954 and A060715 for the row lengths.
%C The row sums are 3, 5, 12, 7, 18, 24, 24, 41, 60, 49, 72, 59, 59,...
%e The table starts at row n=2 as:
%e 3; (between 2 and 4)
%e 5; (between 3 and 6)
%e 5,7; (between 4 and 8)
%e 7; (between 5 and 10)
%K nonn,easy,tabf
%O 2,1
%A _Vincenzo Librandi_, Aug 08 2009
%E Redefined as an irregular table - _R. J. Mathar_, Aug 11 2009