Number of simple tensors with n external gluons.

A005415

Number of simple tensors with n external gluons.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =2a(4) =15a(5) =140a(6) =1915a(7) =33810a(8) =734545a(9) =18929960a(10) =564216345a(11) =19088149850a(12) =722508543295

External references