%I #4 Sep 07 2017 12:14:20
%S 1,1,3,21,651,657653,210065930571
%N Erroneous version of A001699.
%H Mayfawny Bergmann, <a href="http://scholar.rose-hulman.edu/rhumj/vol15/iss2/1/"> Efficiency of Lossless Compression of a Binary Tree via its Minimal Directed Acyclic Graph Representation</a>. Rose-Hulman Undergraduate Mathematics Journal: Vol. 15 : Iss. 2, Article 1. (2014).
%K dead
%O 0,3