Number of nX5 0..1 arrays avoiding the patterns 0 1 0 or 1 0 1 in any row, column, diagonal or antidiagonal.
A206984
Number of nX5 0..1 arrays avoiding the patterns 0 1 0 or 1 0 1 in any row, column, diagonal or antidiagonal.
Terms
- a(0) =16a(1) =256a(2) =420a(3) =1866a(4) =7500a(5) =27762a(6) =106110a(7) =413526a(8) =1583234a(9) =6065840a(10) =23380612a(11) =89904320a(12) =345225042a(13) =1327292244a(14) =5103379268a(15) =19613888918a(16) =75392090306a(17) =289821707064
External references
- oeis: A206984