Number of n X 4 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A317729
Number of n X 4 0..1 arrays with every element unequal to 1, 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =98a(2) =1250a(3) =19208a(4) =293378a(5) =4458098a(6) =67837952a(7) =1032124178a(8) =15703109762a(9) =238914663752
External references
- oeis: A317729