Number of 0..6 arrays x(0..n) of n+1 elements with zero n-1st differences.
A200080
Number of 0..6 arrays x(0..n) of n+1 elements with zero n-1st differences.
Terms
- a(0) =1a(1) =7a(2) =17a(3) =43a(4) =111a(5) =245a(6) =429a(7) =855a(8) =1863a(9) =3573a(10) =10241a(11) =30645a(12) =50043a(13) =160499a(14) =149009a(15) =149121a(16) =755895a(17) =3366835
External references
- oeis: A200080