84487

Appears in sequences

• Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.at n=12A196479
• E.g.f. A(x) satisfies A(x) = exp( x/(1-x^2)^3 * A(x) ).at n=6A390183