Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
A304423
Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =98a(2) =836a(3) =9304a(4) =98190a(5) =1043316a(6) =11085965a(7) =117776344a(8) =1251440091a(9) =13296698887a(10) =141282534547
External references
- oeis: A304423