Number of fixed n-celled polyzebras (or zebra-move-connected polyominoes).

A093877

Number of fixed n-celled polyzebras (or zebra-move-connected polyominoes).

Terms

    a(0) =1a(1) =4a(2) =28a(3) =234a(4) =2162a(5) =21272a(6) =218740a(7) =2323730a(8) =25314097a(9) =281299736a(10) =3176220308a(11) =36332751862a(12) =420086210688

External references