Number of fixed polyforms with n cells of two types: unit squares and isosceles right triangles whose short sides have unit length. Cells are joined along sides of equal lengths.

A391001

Number of fixed polyforms with n cells of two types: unit squares and isosceles right triangles whose short sides have unit length. Cells are joined along sides of equal lengths.

Terms

    a(0) =5a(1) =20a(2) =114a(3) =746a(4) =5191a(5) =37438a(6) =276506a(7) =2080250a(8) =15882363a(9) =122706840a(10) =957239784a(11) =7527357213a(12) =59590835941

External references