Number of 5Xn 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302518
Number of 5Xn 0..1 arrays with every element equal to 0, 1, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =9a(2) =14a(3) =48a(4) =90a(5) =199a(6) =689a(7) =2125a(8) =5410a(9) =13908a(10) =39850a(11) =114503a(12) =312683a(13) =845807a(14) =2344052a(15) =6547828a(16) =18092168a(17) =49718487a(18) =137265089a(19) =380242741a(20) =1051385042a(21) =2901539840a(22) =8012628856a(23) =22150069687a(24) =61220830095a(25) =169117170519a(26) =467176484780
External references
- oeis: A302518