Number of -6..6 arrays x(0..n-1) of n elements with zero sum and no two neighbors equal.
A199702
Number of -6..6 arrays x(0..n-1) of n elements with zero sum and no two neighbors equal.
Terms
- a(0) =1a(1) =12a(2) =114a(3) =1236a(4) =13324a(5) =147072a(6) =1643204a(7) =18527516a(8) =210316392a(9) =2400684208a(10) =27527644696a(11) =316844861020
External references
- oeis: A199702