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%I #7 Mar 11 2014 01:32:50
%S 2,4,5,8,9,10,11,14,16,17,19,21,22,23,25,26,27,28,29,33,34,35,37,39,
%T 41,43,45,46,47,49,50,51,52,53,55,58,59,61,63,64,65,66,67,69,70,71,73,
%U 75,76,77,79,81,82,83,85,86,87,88,89,91,92,94,95,97,99,100,101,103,105,106
%N a(1)=2. a(n) = the smallest integer > a(n-1) that is not equal to the sum of the divisors of any earlier term.
%C If a positive integer n occurs in the sequence, then sigma(n) does not, where sigma(m) = A000203(m).
%C sigma(a(m)) = A175142(m).
%Y Cf. A175142, A000203.
%K nonn
%O 1,1
%A _Leroy Quet_, Feb 23 2010
%E Extended by _Ray Chandler_, Mar 06 2010