Number of nX7 0..3 arrays with entries increasing mod 4 by 0, 1 or 2 rightwards and downwards, starting with upper left zero.
A222443
Number of nX7 0..3 arrays with entries increasing mod 4 by 0, 1 or 2 rightwards and downwards, starting with upper left zero.
Terms
- a(0) =729a(1) =352947a(2) =171655443a(3) =83550197745
External references
- oeis: A222443