This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A182835 #6 Mar 30 2012 18:57:12
%S A182835 3,4,6,7,8,9,11,12,13,14,16,17,18,19,20,21,23,24,25,26,27,28,30,31,32,
%T A182835 33,34,35,36,37,39,40,41,42,43,44,45,46,48,49,50,51,52,53,54,55,56,57,
%U A182835 59,60,61,62,63,64,65,66,67,68,70,71,72,73,74,75,76,77,78,79,80,81,83,84,85,86,87,88,89,90,91,92
%N A182835 n+floor(sqrt(2n+3)), complement of A179207.
%F A182835 a(n)=n+floor(sqrt(2n+3)).
%t A182835 a=2; b=3; Table[n+Floor[(a*n+b)^(1/2)],{n,80}]
%Y A182835 Cf. A179207.
%K A182835 nonn,easy
%O A182835 1,1
%A A182835 _Clark Kimberling_, Jan 07 2011