2067173domain: NAppears in sequencesExpansion of (5-19*x)/(1-10*x+23*x^2).at n=7A164038Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,3,0,1 for x=0,1,2,3,4.at n=8A196805