Number of -2..2 arrays x(0..n+2) of n+3 elements with zero sum and nonzero second and third differences.
A200198
Number of -2..2 arrays x(0..n+2) of n+3 elements with zero sum and nonzero second and third differences.
Terms
- a(0) =68a(1) =246a(2) =1042a(3) =3940a(4) =16092a(5) =63326a(6) =256314a(7) =1028100a(8) =4169932a(9) =16889228a(10) =68746558a(11) =279997576a(12) =1143494160a(13) =4675439056a(14) =19150647962a(15) =78534289030a(16) =322481118006
External references
- oeis: A200198