166368

Appears in sequences

• Number of ways to place 3n nonattacking kings on a 6 X 2n chessboard.at n=5A061594
• Number of ways to place 5n nonattacking kings on a 10 X 2n chessboard.at n=2A173783
• Array read by antidiagonals: T(m,n) is the number of maximum independent sets in the 2m X 2n king graph.at n=39A350819
• Array read by antidiagonals: T(m,n) is the number of maximum independent sets in the 2m X 2n king graph.at n=41A350819
• Expansion of e.g.f. Product_{k>=2} 1 / (1 - x^k/k).at n=9A371487