120872850domain: NAppears in sequencesa(n) is the number of c-nets with n+1 vertices and 2n+2 edges, n >= 1.at n=10A001508Triangle read by rows: T(n,k) is the number of c-nets with n+1 faces and k+1 vertices, 1 <= k <= n. But see A290326 for a better version.at n=88A210252