T(n,k)=Number of -k..k arrays x(0..n-1) of n elements with nonzero sum and with zero through n-1 differences all nonzero.

A200165

T(n,k)=Number of -k..k arrays x(0..n-1) of n elements with nonzero sum and with zero through n-1 differences all nonzero.

Terms

    a(0) =2a(1) =4a(2) =0a(3) =6a(4) =8a(5) =2a(6) =8a(7) =24a(8) =34a(9) =0a(10) =10a(11) =48a(12) =128a(13) =76a(14) =2a(15) =12a(16) =80a(17) =348a(18) =576a(19) =276a(20) =0a(21) =14a(22) =120a(23) =726a(24) =2256a(25) =2778a(26) =700a(27) =2a(28) =16a(29) =168

External references