%I #7 Mar 30 2012 18:57:13
%S 2,4,6,8,9,11,12,14,15,16,18,19,20,22,23,24,26,27,28,29,31,32,33,34,
%T 36,37,38,39,40,42,43,44,45,46,48,49,50,51,52,54,55,56,57,58,59,61,62,
%U 63,64,65,66,68,69,70,71,72,73,74,76,77,78,79,80,81,82,84,85,86,87,88,89,90,92,93,94,95,96,97,98,99,101,102,103,104,105,106,107,108,110,111,112,113,114,115,116,117,118,120,121,122
%N n + floor(sqrt(5n-4)); complement of A184013.
%F a(n) = n + floor(sqrt(5n-4))
%t a=5; b=-4;
%t Table[n+Floor[(a*n+b)^(1/2)],{n,100}]
%t Table[n-1+Ceiling[(n*n-b)/a],{n,70}]
%Y Cf. A184013.
%K nonn,easy
%O 1,1
%A _Clark Kimberling_, Jan 08 2011