Number of n X 7 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.
A207402
Number of n X 7 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.
Terms
- a(0) =20a(1) =400a(2) =2340a(3) =8910a(4) =26676a(5) =68060a(6) =154580a(7) =321110a(8) =621300a(9) =1134296a(10) =1972900a(11) =3293310a(12) =5306580a(13) =8291940a(14) =12612116a(15) =18730790a(16) =27232340a(17) =38844000a(18) =54460580a(19) =75171886a(20) =102292980a(21) =137397420a(22) =182353620a(23) =239364470a(24) =311010356a(25) =400295720
External references
- oeis: A207402