%I #10 Jun 21 2022 07:38:20
%S 2,4,10,24,60,152,402,1094,3012,8232,22086
%N Number of directed site animals on hexagonal net (honeycomb) with n sites.
%H A. J. Guttmann, <a href="https://doi.org/10.1016/S0012-365X(99)00262-9">Indicators of solvability for lattice models</a>, Discrete Math., 217 (2000), 167-189.
%H A. J. Guttmann and A. R. Conway, <a href="https://blogs.unimelb.edu.au/tony-guttmann/files/2019/09/hexfinal.pdf">Hexagonal lattice directed site animals</a>, Statistical Physics on the Eve of the Twenty-First Century, ed. M. T. Batchelor, World Scientific, 1999.
%Y Row sums of A055907.
%K nonn,more
%O 1,1
%A _Christian G. Bower_, Jun 22 2000
%E Name edited by _Andrey Zabolotskiy_, Jun 21 2022