Number of -6..6 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences.
A200551
Number of -6..6 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences.
Terms
- a(0) =114a(1) =1368a(2) =15476a(3) =178834a(4) =2076774a(5) =24378976a(6) =288237528a(7) =3427837106a(8) =40950125796a(9) =491063998130
External references
- oeis: A200551