508321

Appears in sequences

• Number of nonisomorphic oriented matroids with n points in 5 dimensions.at n=3A063803
• Triangle T(n,k) (n >= 3, k = 1..n-2) read by rows, giving number of nonisomorphic oriented matroids with n points in n-k dimensions.at n=24A063804
• Number of isomorphism classes of oriented matroids of dimension n and cardinality n+4.at n=4A246989