413908

Appears in sequences

• Expansion of g.f. (1-x^2)/(1-x-2*x^2+x^3).at n=23A028495
• Row sums of triangle A060556.at n=11A060557
• Number of n X 2 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor.at n=5A221162
• T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor.at n=22A221165
• T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor.at n=26A221165