Number of nX7 0..2 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal.
A206956
Number of nX7 0..2 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal.
Terms
- a(0) =1465a(1) =2146225a(2) =1455935650a(3) =950821989599
External references
- oeis: A206956