874944domain: NAppears in sequencesE.g.f. A(x) satisfies: A'(x) = 1 + A(A(A(x))).at n=7A193098Triangular 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=13A372230