Number of -3..3 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences.
A200548
Number of -3..3 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences.
Terms
- a(0) =30a(1) =200a(2) =1184a(3) =7254a(4) =43698a(5) =266812a(6) =1639804a(7) =10152636a(8) =63132188a(9) =394016210a(10) =2466471522a(11) =15481097890a(12) =97396742734a(13) =614019893832
External references
- oeis: A200548