Arises from color-symmetrized counting of tensor invariants.

A232208

Arises from color-symmetrized counting of tensor invariants.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =15a(4) =44a(5) =199a(6) =1069a(7) =7638a(8) =64503a(9) =628900

External references