Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
A317432
Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =45a(2) =201a(3) =1140a(4) =6964a(5) =39216a(6) =225065a(7) =1322225a(8) =7638732a(9) =44316649a(10) =257597032a(11) =1494192462a(12) =8673209233a(13) =50350995888a(14) =292232453854
External references
- oeis: A317432