Number of nX5 0..3 arrays with entries increasing mod 4 by 0, 1 or 2 rightwards and downwards, starting with upper left zero.
A222441
Number of nX5 0..3 arrays with entries increasing mod 4 by 0, 1 or 2 rightwards and downwards, starting with upper left zero.
Terms
- a(0) =81a(1) =7203a(2) =642249a(3) =57289767a(4) =5110723191a(5) =455924913093
External references
- oeis: A222441