Number of -6..6 arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.
A200452
Number of -6..6 arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences.
Terms
- a(0) =102a(1) =1148a(2) =12002a(3) =127988a(4) =1375006a(5) =14923636a(6) =163058296a(7) =1791564880a(8) =19771609900a(9) =219008350922
External references
- oeis: A200452