Number of n X 4 0..1 arrays with every element equal to 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
A298129
Number of n X 4 0..1 arrays with every element equal to 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =5a(2) =13a(3) =15a(4) =233a(5) =1055a(6) =5782a(7) =36225a(8) =205348a(9) =1209336a(10) =7104221a(11) =41593299a(12) =244217670a(13) =1432727023a(14) =8406086075a(15) =49326923443a(16) =289428447489
External references
- oeis: A298129