1014888

Appears in sequences

• Card matching: coefficients B[n,1] of t in the reduced hit polynomial A[n,n,n](t).at n=6A000279
• Number of labeled connected graphs with n nodes and 0 cutpoints (blocks or nonseparable graphs).at n=6A013922
• Regular triangle where T(n,k) is the number of labeled connected graphs on n + 1 vertices with k maximal blobs (2-connected components).at n=15A317671
• Triangle read by rows: T(n,k) is the number of simple connected graphs on n labeled nodes with k articulation vertices, (0 <= k <= n).at n=28A370064