Number of n X 4 0..2 arrays with row sums 4 and column sums n.
A172642
Number of n X 4 0..2 arrays with row sums 4 and column sums n.
Terms
- a(0) =1a(1) =19a(2) =175a(3) =2371a(4) =32611a(5) =481381a(6) =7343449a(7) =115321795a(8) =1849858771a(9) =30189264889a(10) =499616140189
External references
- oeis: A172642