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%I A105799 #2 Mar 31 2012 13:46:51
%S A105799 2,3,4,6,8,11,13,17,19,20,21,22,24,25,26,29,31,37,41,43,47,53,59,60,
%T A105799 62,63,64,65,66,68,69,70,72,74,79,83,89,97,101,103,107,109,113,127,
%U A105799 131,137,139,140,141,142,143,144,145,146,147,148,150,152,153,154,155,156,158
%N A105799 Self-describing sequence: 2 prime numbers, then 3 composites, then 4 primes, then 6 composites, then 8 primes, then 11 composites, then 13 primes, etc.
%e A105799 2 3 4 6 8 11 13 17 19 20 21 22 24 25 26 29 31 37 41 43 47 53 59 ...
%e A105799 ^ ^ - - - ^^ ^^ ^^ ^^ -- -- -- -- -- -- ^^ ^^ ^^ ^^ ^^ ^^ ^^ ^^
%e A105799 .2....3........4..............6....................8....
%e A105799 pri..comp....primes.......composites.............primes
%K A105799 base,easy,nonn
%O A105799 2,1
%A A105799 _Eric Angelini_, May 05 2005

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