Number of (n+1)X(4+1) 0..2 arrays with each row and column divisible by 5, read as a base-3 number with top and left being the most significant digits.
A263220
Number of (n+1)X(4+1) 0..2 arrays with each row and column divisible by 5, read as a base-3 number with top and left being the most significant digits.
Terms
- a(0) =7a(1) =343a(2) =12601a(3) =475539a(4) =22342751a(5) =1094138875a(6) =53375395657
External references
- oeis: A263220