Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
A207366
Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
Terms
- a(0) =18a(1) =324a(2) =1350a(3) =5625a(4) =15525a(5) =42849a(6) =95220a(7) =211600a(8) =409860a(9) =793881a(10) =1397088a(11) =2458624a(12) =4029760a(13) =6604900a(14) =10246590a(15) =15896169a(16) =23603040a(17) =35046400a(18) =50207520a(19) =71927361a(20) =100016433a(21) =139074849a(22) =188570070a(23) =255680100a(24) =339259830a(25) =450161089a(26) =586225710
External references
- oeis: A207366