126780

Appears in sequences

• Number of nX2 0..1 arrays with no 1 equal to more than two of its king-move neighbors, with the exception of exactly one element.at n=9A282554
• Irregular triangle read by rows where T(n,k) is the number of labeled simple graphs with n vertices and exactly k triangles, 0 <= k <= binomial(n,3).at n=49A372170