Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
A299685
Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =5a(1) =16a(2) =54a(3) =648a(4) =2850a(5) =20882a(6) =159324a(7) =1041908a(8) =7459468a(9) =53904306a(10) =375940431a(11) =2678988639a(12) =19089395160a(13) =135035259385a(14) =959911426013
External references
- oeis: A299685