Number of triangles in minimal triangle graphs.

Terms

a(0) =1a(1) =2a(2) =5a(3) =13a(4) =35a(5) =86a(6) =250a(7) =687a(8) =2001a(9) =5897a(10) =17847a(11) =54683a(12) =170578a(13) =537468a(14) =1714312a(15) =5516392a(16) =17910741a(17) =58588966a(18) =193035920a(19) =640132185a(20) =2135841554a(21) =7167550473a(22) =24186506740