Number of nX4 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
A305681
Number of nX4 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =24a(2) =139a(3) =1595a(4) =17947a(5) =207116a(6) =2403703a(7) =27979008a(8) =325990496a(9) =3799972909a(10) =44303294071a(11) =516563566397
External references
- oeis: A305681