53587domain: NAppears in sequencesNumber of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.at n=16A195972a(n) = n^3 + 2*n^2 + 5*n + 11.at n=37A271779