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%I #7 Apr 04 2016 18:53:13
%S 2,3,6,8,13,17,23,28,35,42,50,58,68,77,88,98,110,122,135,148,162,177,
%T 192,208,224,241,258,277,295,315,334,355,375,398,419,443,465,490,513,
%U 539,564,591,617,645,672,701,729,760,789,821,851,884,915
%N a(n) = a(n-2) + c(n-1) for n >= 3, a( ) increasing, given a(1)=2, a(2)=3, where c( ) is complement of a( ).
%H Ivan Neretin, <a href="/A022943/b022943.txt">Table of n, a(n) for n = 1..10000</a>
%t Fold[Append[#1, #1[[-2]] + Complement[Range[Max@#1 + 2], #1][[#2]]] &, {2, 3}, Range[2, 52]] (* _Ivan Neretin_, Apr 04 2016 *)
%Y Cf. A005228 and references therein.
%K nonn
%O 1,1
%A _Clark Kimberling_
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