120034

Appears in sequences

• Number of edge-rooted unlabeled graphs with n edges.at n=10A126133
• Number of ways to place 4 nonattacking kings on a 4 X n board.at n=12A172203
• Number T(n,k) of tilings of a 5 X n rectangle with pentominoes of any shape and exactly k pentominoes of shape U; triangle T(n,k), n>=0, read by rows.at n=24A247708