Number of nX5 0..4 arrays with entries increasing mod 5 by 0, 1 or 2 rightwards and downwards, starting with upper left zero.
A222166
Number of nX5 0..4 arrays with entries increasing mod 5 by 0, 1 or 2 rightwards and downwards, starting with upper left zero.
Terms
- a(0) =81a(1) =4913a(2) =317259a(3) =20780181a(4) =1366395515a(5) =89948464453
External references
- oeis: A222166