Number of -3..3 arrays x(0..n-1) of n elements with sum zero and with zeroth through n-1st differences all nonzero.
A200033
Number of -3..3 arrays x(0..n-1) of n elements with sum zero and with zeroth through n-1st differences all nonzero.
Terms
- a(0) =0a(1) =6a(2) =14a(3) =84a(4) =264a(5) =1450a(6) =5268a(7) =25070a(8) =102854a(9) =460146a(10) =1954930a(11) =8681238a(12) =37537698a(13) =165783402a(14) =725328338a(15) =3201189116
External references
- oeis: A200033