Number of -7..7 arrays x(0..n-1) of n elements with zero sum, adjacent elements differing by more than one, and elements alternately increasing and decreasing.
A200191
Number of -7..7 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) =14a(2) =90a(3) =688a(4) =5300a(5) =41938a(6) =334278a(7) =2702398a(8) =21910764a(9) =179391752a(10) =1470318926a(11) =12138752566a(12) =100237526220a(13) =832451175714
External references
- oeis: A200191