Number of anisohedral polyhexes with n cells.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =4a(7) =36a(8) =73a(9) =258a(10) =501a(11) =999a(12) =1383a(13) =4835a(14) =4685a(15) =10576a(16) =8497a(17) =42156a(18) =12931a(19) =129325a(20) =84555