48796domain: NAppears in sequencesNumber of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,2,1,1,1 for x=0,1,2,3,4.at n=9A197541Smooth Lyndon words with 5 colors.at n=12A215332Number of minimal edge covers in the n-path complement graph.at n=9A351588