Number of -n..n arrays x(0..7) of 8 elements with zero sum and no two neighbors summing to zero.
A199837
Number of -n..n arrays x(0..7) of 8 elements with zero sum and no two neighbors summing to zero.
Terms
- a(0) =34a(1) =6126a(2) =113884a(3) =888420a(4) =4340094a(5) =15805218a(6) =47040968a(7) =120843752a(8) =277500282a(9) =583380598a(10) =1141982292a(11) =2107735180a(12) =3702875670a(13) =6237700074a(14) =10134506112a(15) =15955531856a(16) =24435201362a(17) =36516986238a(18) =53395192396a(19) =76561981236
External references
- oeis: A199837