Number of nX4 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
A298457
Number of nX4 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =6a(2) =30a(3) =219a(4) =2013a(5) =17443a(6) =158594a(7) =1441287a(8) =13145287a(9) =120045930a(10) =1096641326a(11) =10020505046a(12) =91567796475a(13) =836780632957
External references
- oeis: A298457