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%I #8 Dec 15 2023 20:24:52
%S 1,-1,1,0,-3,5,9,-44,-50,545,572,-9890,-13263,251236,490208,-8309897,
%T -25084529,340735734,1618199204,-16683530000,-123071639020,
%U 922641297931,10768715419165,-53177799474462,-1066100082041498
%N Column 1 of triangle A055288.
%H <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a>
%Y Cf. A055288.
%K sign
%O 1,5
%A _Christian G. Bower_, May 09 2000