Number of nX4 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.
A207313
Number of nX4 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column or nw-to-se diagonal.
Terms
- a(0) =75a(1) =5625a(2) =347502a(3) =21162579a(4) =1274682671a(5) =76655305645
External references
- oeis: A207313