Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A317607
Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =28a(2) =109a(3) =472a(4) =2639a(5) =13134a(6) =64593a(7) =329236a(8) =1675126a(9) =8446443a(10) =42786562a(11) =217265141a(12) =1100720836a(13) =5579444003a(14) =28303389818a(15) =143512396002a(16) =727722225397
External references
- oeis: A317607