243483

Appears in sequences

• Partial sums of A246031.at n=31A255364
• Number of (non-null) connected induced subgraphs in the 2 X n rook graph.at n=8A360874
• Triangle read by rows: T(n,k) is the number of planar tanglegrams of size n with irreducible component of size k.at n=47A371659