Number of polyaboloes (or polytans): number of different shapes that can be formed with n congruent isosceles right triangles, identifying mirror images.
A006074
Number of polyaboloes (or polytans): number of different shapes that can be formed with n congruent isosceles right triangles, identifying mirror images.
Terms
- a(0) =1a(1) =3a(2) =4a(3) =14a(4) =30a(5) =107a(6) =318a(7) =1116a(8) =3743a(9) =13240a(10) =46476a(11) =166358a(12) =596638a(13) =2158829a(14) =7839845a(15) =28616815a(16) =104814161a(17) =385269397a(18) =1420242629a(19) =5249877583a(20) =19452536934a(21) =72237904034
External references
- oeis: A006074