Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3 or 8 king-move adjacent elements, with upper left element zero.
A305228
Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =32a(1) =293a(2) =236a(3) =541a(4) =2050a(5) =7062a(6) =26528a(7) =96528a(8) =359365a(9) =1331372a(10) =4953295a(11) =18415910a(12) =68529992a(13) =254994255a(14) =948995613a(15) =3531814704a(16) =13144690959a(17) =48922066241a(18) =182080588807a(19) =677678047930
External references
- oeis: A305228