Number of n X 3 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.
A207437
Number of n X 3 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.
Terms
- a(0) =6a(1) =36a(2) =108a(3) =333a(4) =1144a(5) =4048a(6) =14743a(7) =54250a(8) =201098a(9) =747683a(10) =2785178a(11) =10383774a(12) =38732585a(13) =144511028a(14) =539243500a(15) =2012324661a(16) =7509786472a(17) =28026278000a(18) =104594259855a(19) =390348614698
External references
- oeis: A207437