Number of 3 X n 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 1 0 vertically.
A207939
Number of 3 X n 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 1 0 vertically.
Terms
- a(0) =6a(1) =36a(2) =98a(3) =271a(4) =844a(5) =2706a(6) =8977a(7) =30168a(8) =102384a(9) =349069a(10) =1193648a(11) =4087980a(12) =14013419a(13) =48061824a(14) =164886926a(15) =565777111a(16) =1941543632a(17) =6663053798a(18) =22867234785a(19) =78480570100a(20) =269349014868a(21) =924424358989
External references
- oeis: A207939