89556

Appears in sequences

• Expansion of (1-x)^(-1)/(1-x-x^2+2*x^3).at n=47A077867
• Number of (n+1) X (3+1) 0..2 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally and vertically.at n=6A253451
• Number of (n+1) X (7+1) 0..2 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally and vertically.at n=2A253455