4047865920

Appears in sequences

• Let A(n) be the matrix in the group GL(n,2) such that for 1<=i, j<=n: A[i,j] = 1 if i+j = n+1 A[i,j] = 0 if i+j != n+1. a(n) is the size of the conjugacy class of A(n) in GL(n,2).at n=7A087918
• Triangle read by rows: T(n,k) is the number of surjective linear mappings from an n-dimensional vector space over F_2 onto a k-dimensional vector space, n>=0, 0<=k<=n.at n=40A288853
• Number of 2n X 2n matrices M over GF(2) such that the column space of M is equal to the null space of M.at n=4A384038