680085

Appears in sequences

• Weight distribution of [255,247,3] Hamming code of length 255.at n=4A010089
• Weight distribution of d=4 Hamming code of length 255.at n=2A010095
• Triangular array read by rows. T(n,k) is the number of size k circuits in the linear matroid M[A] where A is the n X 2^n-1 matrix whose columns are the nonzero vectors in GF(2)^n, n>=2, 3<=k<=n+1.at n=22A372230