Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
A316644
Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =10a(2) =33a(3) =42a(4) =277a(5) =954a(6) =2432a(7) =10541a(8) =39013a(9) =126666a(10) =482131a(11) =1792255a(12) =6319249a(13) =23345602a(14) =86360870a(15) =313149450a(16) =1150902364a(17) =4244463411a(18) =15539179620a(19) =57111294927a(20) =210353855214a(21) =772739674178
External references
- oeis: A316644