130187

Appears in sequences

• Consider the family of multigraphs enriched by the species of endofunctions. Sequence gives number of those multigraphs with n arcs.at n=5A099711
• Number of inequivalent (mod D_4) ways to place 2 nonattacking knights on an n X n board.at n=36A243717
• Number of (7+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=22A258560