Number of 3Xn 0..2 arrays with row sums equal and column sums unequal to adjacent columns.
A203493
Number of 3Xn 0..2 arrays with row sums equal and column sums unequal to adjacent columns.
Terms
- a(0) =3a(1) =36a(2) =624a(3) =9540a(4) =170868a(5) =3171708a(6) =59683122a(7) =1152091884a(8) =22554305502a(9) =446374660920
External references
- oeis: A203493