Number of -6..6 arrays x(0..n-1) of n elements with zero sum, adjacent elements differing by more than one, and elements alternately increasing and decreasing.
A200190
Number of -6..6 arrays x(0..n-1) of n elements with zero sum, adjacent elements differing by more than one, and elements alternately increasing and decreasing.
Terms
- a(0) =1a(1) =12a(2) =66a(3) =426a(4) =2794a(5) =18838a(6) =127800a(7) =881008a(8) =6081086a(9) =42452472a(10) =296258332a(11) =2085263400a(12) =14662923954a(13) =103810065802a(14) =734016517080
External references
- oeis: A200190