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%I #18 Jan 11 2013 16:34:33
%S 1,0,1,4,6,4,2,8,32,96,256,608,1268,2392,4177,6720,9976,14064,19882,
%T 30952,59080,138096,355734,929040,2380268,5940408,14466720,34499984,
%U 80786736,186018208,421400951,939336288,2060601888,4450171328,9468023540
%N Red rooted red-black trees with n internal nodes.
%H F. Ruskey, <a href="http://www.theory.cs.uvic.ca/~cos/inf/tree/RedBlackTree.html">Information on Red-Black Trees</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Red-BlackTree.html">Red-Black Tree.</a>
%H <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a>
%K nonn
%O 1,4
%A _Frank Ruskey_
%E More terms from _Sean A. Irvine_, Mar 08 2012
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