%I A000947
%S A000947 1,2,4,10,15,44,56,177,212
%N A000947 Number of free nonplanar polyenoids with n nodes.
%D A000947 S. J. Cyvin, J. Brunvoll, E. Brendsdal, B. N. Cyvin and E. K. Lloyd, 
               Enumeration of polyene hydrocarbons: a complete mathematical solution, 
               J. Chem. Inf. Comput. Sci., 35 (1995) 743-751.
%Y A000947 Sequence in context: A048200 A064513 A058201 this_sequence A125245 A096689 
               A039682
%Y A000947 Adjacent sequences: A000944 A000945 A000946 this_sequence A000948 A000949 
               A000950
%K A000947 nonn
%O A000947 7,2
%A A000947 E. K. Lloyd (E.K.Lloyd(AT)soton.ac.uk)