Number of polyominoes consisting of n regular unit octagons.

A103466

Number of polyominoes consisting of n regular unit octagons.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =11a(4) =50a(5) =269a(6) =1605a(7) =10102a(8) =65323a(9) =430302a(10) =2868320a(11) =19299334a(12) =130807068a(13) =892075515a(14) =6115673262

External references