Arises from color-symmetrized counting of tensor invariants.

A232219

Arises from color-symmetrized counting of tensor invariants.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =11a(4) =27a(5) =93a(6) =233a(7) =978a(8) =3156a(9) =13280a(10) =44476a(11) =205611a(12) =796091

External references