Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
A305907
Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =28a(2) =98a(3) =396a(4) =2075a(5) =9140a(6) =40412a(7) =189729a(8) =873060a(9) =3979064a(10) =18356703a(11) =84632174a(12) =389029015a(13) =1791954662a(14) =8257849953a(15) =38030907288a(16) =175204408009a(17) =807291828371
External references
- oeis: A305907