181971248

Appears in sequences

• Expansion of (2/(3*sqrt(1-4*z)-1+4*z))*((1-sqrt(1-4*z))/(2*z))^k with k=3.at n=14A172025
• Number of 7Xn 0..1 arrays with rows unimodal and columns nondecreasing.at n=16A225014