Number of tilings of a right isosceles triangle by n right isosceles triangular tiles of any size, such that the intersection of any two tiles is either empty, a vertex of both tiles, or an edge of both tiles.

A369237

Number of tilings of a right isosceles triangle by n right isosceles triangular tiles of any size, such that the intersection of any two tiles is either empty, a vertex of both tiles, or an edge of both tiles.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =10a(5) =15a(6) =30a(7) =69a(8) =137a(9) =243a(10) =451a(11) =853a(12) =1562a(13) =2912a(14) =5555a(15) =10459a(16) =19644a(17) =37039a(18) =69305a(19) =129346

External references