Number of -4..4 arrays x(0..n+1) of n+2 elements with zero sum and no two neighbors summing to zero.
A199828
Number of -4..4 arrays x(0..n+1) of n+2 elements with zero sum and no two neighbors summing to zero.
Terms
- a(0) =44a(1) =336a(2) =2146a(3) =15708a(4) =118280a(5) =888420a(6) =6715618a(7) =51077518a(8) =390278378a(9) =2993722414a(10) =23038998514a(11) =177794832922
External references
- oeis: A199828