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%I #13 Mar 30 2012 18:57:12
%S 1,4,3,19,7,13,6,229,25,43,11,118,18,34,10,26794,250,376,32,1033,52,
%T 89,16,7258,133,208,24,664,42,76,15,359026204,27025,31876,272,71629,
%U 403,593,40,536128,1078,1483,62,4184,102,169,22,26357428
%N First of two complementary trees generated by the triangular numbers. The second tree is A183232.
%C Begin with the main tree A183079 generated by the triangular numbers:
%C ......................1
%C ......................2
%C .............3.................4
%C .........6.......5........10........7
%C .......21..9...15..8....55..14....28..11
%C Every n>2 is in the subtree from 3 or the subtree from 4.
%C Therefore, on subtracting 2 from all entries of those subtrees, we obtain complementary trees: A183231 and A183232.
%F See the formulas at A183079 and A183233.
%e First three levels:
%e ............1
%e .......4.........3
%e ....19...7.....13..6
%Y Cf. A183079, A183232 (second tree), A183233.
%K nonn,tabf
%O 1,2
%A _Clark Kimberling_, Jan 02 2011
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