Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
A316921
Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =5a(1) =21a(2) =31a(3) =137a(4) =594a(5) =2574a(6) =15118a(7) =95244a(8) =569635a(9) =3550989a(10) =22664602a(11) =142267931a(12) =895070740a(13) =5670787406a(14) =35824811579a(15) =226112280654
External references
- oeis: A316921