Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.
A304306
Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =65a(2) =261a(3) =1137a(4) =4979a(5) =22089a(6) =98560a(7) =441950a(8) =1985853a(9) =8936025a(10) =40245259a(11) =181349063a(12) =817441187a(13) =3685379513a(14) =16617254516a(15) =74932039580a(16) =337905147089
External references
- oeis: A304306