Number of nX3 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
A299549
Number of nX3 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =9a(3) =31a(4) =166a(5) =752a(6) =3739a(7) =18300a(8) =90313a(9) =446451a(10) =2207877a(11) =10926364a(12) =54077370a(13) =267676863a(14) =1325022222a(15) =6559112697a(16) =32469220849a(17) =160731379343a(18) =795665619120
External references
- oeis: A299549