1104045

Appears in sequences

• Number of directed 3-regular graphs on n nodes.at n=5A219890
• Number of directed 5-regular graphs on n nodes.at n=3A219892
• Triangle read by rows: T(n,k) is the number of k-regular digraphs on n unlabeled nodes, k = 0..n-1.at n=39A350910
• Triangle read by rows: T(n,k) is the number of k-regular digraphs on n unlabeled nodes, k = 0..n-1.at n=41A350910