a(n) is the number of secondary GL(4) invariants contructed from n+3 distinct four component vectors.

A383823

a(n) is the number of secondary GL(4) invariants contructed from n+3 distinct four component vectors.

Terms

    a(0) =1a(1) =5a(2) =105a(3) =4116a(4) =232848a(5) =16818516a(6) =1447482465a(7) =142174944340

External references