Number of nX4 0..1 arrays with every element unequal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
A304061
Number of nX4 0..1 arrays with every element unequal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =18a(2) =69a(3) =661a(4) =5580a(5) =48148a(6) =418382a(7) =3621421a(8) =31403562a(9) =272264465a(10) =2360282214a(11) =20463703770a(12) =177413237112
External references
- oeis: A304061