%I A003104 M1208
%S A003104 1,1,2,4,10,24,67
%N A003104 Hexagonal n-element polyominoes whose graph is a path.
%C A003104 Could this be the same as A121186?
%D A003104 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A003104 E. M. Palmer, Variations of the cell growth problem, Lect. Notes Math. 
               303 (1972), 215-224.
%Y A003104 Sequence in context: A001997 A000084 A057734 this_sequence A151516 A121186 
               A028506
%Y A003104 Adjacent sequences: A003101 A003102 A003103 this_sequence A003105 A003106 
               A003107
%K A003104 nonn,more
%O A003104 1,3
%A A003104 N. J. A. Sloane (njas(AT)research.att.com).