Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,3,4,1 for x=0,1,2,3,4.

A196207

Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,3,4,1 for x=0,1,2,3,4.

Terms

    a(0) =8a(1) =18a(2) =17a(3) =70a(4) =135a(5) =301a(6) =751a(7) =1774a(8) =4243a(9) =10211a(10) =24823a(11) =60093a(12) =145378a(13) =351699a(14) =855562a(15) =2076868a(16) =5030512a(17) =12211093a(18) =29679181a(19) =72051591a(20) =174807032a(21) =424556639a(22) =1031502532a(23) =2504434609a(24) =6080193626a(25) =14768788766a(26) =35874049343a(27) =87112767731

External references