Number of anisohedral polyominoes with n cells.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =9a(9) =44a(10) =108a(11) =222a(12) =431a(13) =900a(14) =1157a(15) =2258a(16) =1381a(17) =7429a(18) =5542a(19) =18306a(20) =22067a(21) =47849a(22) =10542a(23) =202169a(24) =28977