Number of chiral n-ominoes in n-2 space.

Terms

a(0) =0a(1) =2a(2) =6a(3) =17a(4) =49a(5) =135a(6) =361a(7) =951a(8) =2493a(9) =6497a(10) =16837a(11) =43498a(12) =112164a(13) =288741a(14) =742294a(15) =1906552a(16) =4893835a(17) =12555662a(18) =32201344a(19) =82566738a(20) =211675672a(21) =542621858a(22) =1390929877a(23) =3565435302a(24) =9139718572a(25) =23430209922a(26) =60069035611a(27) =154014868677