T(n,k)=Number of -k..k arrays x(0..n-1) of n elements with sum zero and with zeroth through n-1st differences all nonzero.
A200038
T(n,k)=Number of -k..k 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) =0a(2) =2a(3) =0a(4) =4a(5) =0a(6) =0a(7) =6a(8) =2a(9) =2a(10) =0a(11) =8a(12) =14a(13) =28a(14) =0a(15) =0a(16) =10a(17) =28a(18) =84a(19) =26a(20) =2a(21) =0a(22) =12a(23) =52a(24) =218a(25) =264a(26) =168a(27) =0a(28) =0a(29) =14
External references
- oeis: A200038